Our sense of depth perception and ability to see in 3 dimensions are often-overlooked benefits of our complex visual system.

Our eyes gather a significant amount of visual data as we observe our surroundings. Both eyes send this gathered data back to the brain, where it is interpreted and combined into a single cohesive image.

The fact that the eyes are set a small distance apart from each other allows them to gather slightly different sets of visual information, which the brain interprets as depth and distance when combining the two images. This produces 3-D vision.

Here are our top 4 reasons why 3D vision is so crucial:

1. Learning

3D vision plays a key role in a child’s ability to learn in school. Children who have problems with 3D depth perception will often have difficulty with spatial skills and visualization. This impacts their ability to form letters correctly, develop accurate word memory and easily understand complex shapes. These challenges can significantly undermine their reading speed, spelling abilities, handwriting, understanding of mathematics and comprehension.

3D vision is especially important in subjects such as geometry, where a sense of depth and space are essential to understanding basic concepts.

2. Sports

In sports like basketball, football and soccer, it’s essential to know where other teammates are standing on the field or court in order to pass the ball. It’s also a key part of catching incoming passes and judging the distance to the basket or goal post.

In baseball, 3D vision is necessary for sizing up the ball as it comes across the plate, for judging distances, swinging, catching and hitting, and running the bases.

3. Driving

Driving safely is absolutely tied to depth perception and the ability to see in 3D. Without them, drivers may not be able to avoid hitting other cars, know when it is safe to change lanes, and how far to go when backing into or moving out of parking spots to avoid other cars, the curb or pedestrians.

Accurate 3D vision is particularly important at night, where there are fewer visual cues, such as the size and movement of nearby objects, to make quick decisions.

4. Day-To-Day Tasks

Even the most basic day-to-day tasks, such as shaking another person’s hand, are made easier with proper depth perception and 3D vision.

3D vision also makes the world around you safer. Crossing the street requires you to estimate the distance between yourself and any cars that may be on the street, as well as the speed those cars are traveling. Even walking downstairs can be hazardous if you can’t properly gauge the distance from each step down to the next.

Your Eye Doctor Can Help With 3D Vision Issues

If you’re experiencing difficulties with 3D vision, speak to your eye doctor about vision therapy. This doctor-prescribed, evidence-based regimen of in-office and at-home eye exercises helps reset and strengthen the connection between your eyes and your brain. For 3D vision, this means helping coordinate the signals coming from your brain to each eye, so that the eyes can move and focus in unison.

For more information about 3D vision, and how our eye doctors can help, visit Dr. Terry Tsang Optometry, Inc. today.

 

Q: How can vision therapy help with 3D vision issues?

• A: After we perform a functional eye exam to confirm that vision therapy is the right choice for you or your child, we’ll begin creating a customized therapy program for your specific needs. The vision therapy program will help strengthen the connection between the eyes and brain, to help the entire visual system work together more effectively and efficiently. In the case of 3D vision issues, this may mean working on helping the eyes move in unison more effectively or improving the eyes’ ability to converge effectively on objects close-up.Though vision therapy can sometimes take a while to address the problem (4 to 6 months on average), it is usually quite successful.

Q: What is the difference between a functional eye exam and a standard eye exam?

• A: A standard eye exam will check for visual acuity and the presence of eye disease. However, a standard exam doesn’t assess eye teaming, convergence/divergence and other problems affecting 3D and binocular vision. That’s why a functional eye exam is so important. If your child is behind in school or having developmental issues, these may be tied to vision problems that can be detected as part of a functional eye exam.

Our practice serves patients from Tustin, Lake Forest, Newport Beach, and Mission Viejo, California and surrounding communities.

Now that a couple of years have passed since the start of the COVID-19 pandemic, researchers have gotten a clearer picture of the impact that online schooling has had on children’s eyes.

Not only have myopia cases increased, but more children are experiencing symptoms of eye strain and convergence insufficiency due to extended screen time.

Below, we explore what eye strain and convergence insufficiency are, and how vision therapy can help counteract the negative effects of online learning.

Symptoms of Digital Eye Strain

Prolonged use of digital devices like computers or smartphones can cause a condition called computer vision syndrome, also known as digital eye strain. This condition affects around 50% of adults and children.

Symptoms of digital eye strain include:

• Sore eyes
• Blurred vision
• Neck and shoulder pain
• Headaches

Children who complain of any of these symptoms should have their eyes evaluated by a developmental optometrist to ensure that vision problems aren’t exacerbating their symptoms.

What is Convergence Insufficiency?

Normally, when your eyes focus on a very near object, like a pencil near your nose, they must point slightly inwards to see a unified and clear image.

With convergence insufficiency, the eyes aren’t able to work in unison to point inward. Instead, one eye may point outward when trying to focus on a near object, leading to blurred or double vision.

Children with convergence insufficiency may struggle to perform visually demanding near tasks like reading and homework. In fact, many children who have vision-related learning problems are often misdiagnosed as having learning disabilities.

How Does Screen Time Lead to Eye Strain and Convergence Insufficiency?

Experts at Wills Eye Hospital recently studied the correlation between prolonged screen time and its effects on children’s eyes. They surveyed 110 students aged 10-17 who attended classes online. Prior to the beginning of online sessions, the students all had healthy vision.

The researchers discovered that the number of hours spent in front of a screen directly correlated to the likelihood of developing digital eye strain and convergence insufficiency. More than half of the students experienced symptoms of both visual conditions, with 17% of cases being severe convergence insufficiency.

These important and timely findings should alert parents to the risks that come with online learning, and encourage them to find solutions and take preventative measures to keep their kids’ eyes healthy. Fortunately, that’s where vision therapy comes in.

How Can Vision Therapy Help?

Vision therapy trains the eyes and brain to work together efficiently to resolve a wide range of visual dysfunctions.

Restoring healthy binocular vision is the goal for children with convergence insufficiency, and vision therapy is a primary treatment for accomplishing that.

According to the National Eye Institute, most children with convergence insufficiency experience significant improvement after just 12 weeks of vision therapy.

Vision therapy can also be effective for treating symptoms of digital eye strain in children. According to the Optometrists Network, a free and extensive online library for eye care, vision therapy can relieve symptoms of digital eye strain by strengthening the visual system.

To learn more about the benefits of vision therapy or to schedule your child’s functional visual evaluation, contact Dr. Terry Tsang Optometry, Inc. today!

Dr. Terry Tsang Optometry, Inc. offers vision therapy to patients from Tustin, Lake Forest, Newport Beach, and Mission Viejo, California and surrounding communities.

Q: What is a functional vision evaluation?

• A: A functional visual evaluation assesses a multitude of visual skills that normally aren’t tested in standard eye exams or vision screenings. Some examples of those visual skills include convergence, eye tracking and teaming, visual processing, eye movement, focusing, eye alignment and accommodation flexibility.

Q: Who is a candidate for vision therapy?

• A: Children and adults who have varying degrees of visual dysfunction are ideal candidates for vision therapy. Many patients may not be aware of problems with their visual systems but suffer from symptoms like headaches or dizziness, which may be rooted in their vision. Children with learning problems or any visual symptoms may benefit from a customized vision therapy program.

Reading involves the simultaneous coordination of a number of basic visual skills. For children who have not yet mastered some of these skills, reading can be an exercise in frustration, leading them to avoid reading altogether.

While many of us take our eyes’ ability to converge, focus and track for granted, those with underdeveloped visual skills often struggle to keep track of where they are on the page and to fully understand and remember what they’ve just read.

We’ve outlined four of the top vision-related reasons why children refuse to read, and how vision therapy can help your child become a more confident reader.

1. Eye Tracking Problems

Eye tracking is the eyes’ ability to move smoothly and accurately from place to place. Good eye tracking skills allow a child to keep their eyes on an incoming baseball or move successfully from word to word on a page of text without losing their place.

For a child with eye-tracking issues, eye movements will be slow and inaccurate, often seen as eye flickering or requiring extra head movements, to compensate for the reduced visual skill.

Poor eye tracking can cause a child to frequently lose their spot and skip words or even whole lines of text while reading. In this case, the child uses a lot more energy than their peers to simply keep track of where they are on the page, causing difficulty with reading comprehension and fluency.

2. Difficulties With Eye Teaming

Eye teaming is the eyes’ ability to work together to send accurate visual information to the brain. Although each eye sends a slightly different image, the brain is able to combine these two images into a single picture, allowing for three-dimensional vision and depth perception.

When children have problems with eye teaming, their eyes are unable to work together. They send two very distinct images to the brain, which struggles to easily combine the two images into a single clear, cohesive image.

A child attempting to read with eye teaming issues may experience eye strain, headaches or even double vision. Often, words on a page will look blurry or appear to ‘float’ on the page. Eye teaming difficulties may also cause the child to have a reduced attention span, and lead them to avoid reading or not read at grade level.

3. Visualization Problems

Visualization refers to the ability to see something in the mind’s eye even if that thing is not right there in front of us. This skill allows a child to recall words and remember how to spell words that they’ve previously seen. Visualization allows many of us to read a story and then ‘see’ the characters and events play through our mind as if we are watching a film.

For some children, however, this doesn’t happen. The brain has a hard time taking the visual information it’s receiving from the eyes and interpreting it into larger images and concepts. This can result in poor reading comprehension and may render that reading is a chore and an unenjoyable experience.

4. Issues with Accommodation

Accommodation is the ability to refocus the eyes each time we shift our gaze from one image or object to the next. This happens as a result of the swift and accurate contraction and relaxation of muscles in the eye to quickly focus and refocus as the eye moves.

In children with accommodation problems, the focusing muscles in the eyes do not smoothly contract and relax efficiently as their eyes move across the page from word to word or from a book (or screen) to the board and back. They need to stop and refocus their vision every time they read another word. This stop-and-start type of reading harms reading comprehension, and the constant need to refocus can cause headaches and eye strain.

So What’s The Solution?

All of the problems mentioned above are due to reduced visual skills and can be frustrating for children and parents alike. Fortunately, there is a solution: vision therapy.

Vision therapy is a personalized, doctor-prescribed evidence-based regimen of in-office and at-home eye exercises to teach your child’s eyes and brain to more effectively work together. Depending on your child’s needs, the customized program may include vision therapy aids such as prism glasses, devices and specialized therapy computer programs.

Contact Dr. Terry Tsang Optometry, Inc. to help your child get back on track with their reading and learning.

Dr. Terry Tsang Optometry, Inc. offers vision therapy to patients from Tustin, Lake Forest, Newport Beach, and Mission Viejo, California and surrounding communities.

Visual problems in autistic children commonly go undetected and untreated. Often mistaken for symptoms of autism, visual problems can make it much more difficult for individuals with autism to process what they are seeing.

In a 2019 review of eye clinic records, the Journal of the American Association for Pediatric Ophthalmology and Strabismus found that many autistic children have undetected vision problems.

“Among 2,555 children at a university autism clinic, about 11% had significant vision disorders, including strabismus (eye misalignment) and amblyopia, in which poor vision in one or both eyes results from abnormal early visual development,” the researchers said.

Vision Problems and Autistic Behaviors

Though many of the following autistic behaviors may appear to be unrelated to vision impairment, in reality, a high number of them are due to poor vision or visual skills.

• Light sensitivity
• Amblyopia/lazy eye
• Lack of reciprocal play
• Eye alignment (eye turns)
• Common eye-rolling
• Looking through/beyond objects
• Difficulty accurately tracking moving objects
• Inability to maintain eye contact with people
• Visual stimming (flapping fingers in front of eyes)
• Looking at objects from the side of the eyes
• Extreme fear or absence of fear of heights

Vision Therapy for Children with Autism

Vision therapy is a proven treatment that strengthens the neurological connections between the brain and eyes to improve visual abilities.

A vision therapy program for an autistic child will help them improve visual processing, which in turn, will help them better understand their surroundings and improve associated behaviors, like anxiety.

Each vision therapy program is tailored to the child’s specific needs and includes age-appropriate exercises and activities.

Vision therapy tends to focus on improving the following skills in autistic kids:

• Central vision
• Peripheral stability
• Efficient eye coordination
• Visual-spatial organization
• Visual information processing

Yoked or ambient prisms

Vision problems, particularly visual-spatial misperceptions such as bodies/objects/people moving in space, can make an autistic child feel frightened, confused or distressed, leading to certain behavioral responses like poor eye contact or looking beyond an object.

Yoked or ambient prism lenses assist autistic children in making better use of their vision. Prisms can enhance posture, balance, and attention almost immediately, thus considerably boosting the child’s sense of physical safety and comfort while reducing anxiety and sensory overload.

Prism lenses can be worn on a daily basis or for the duration of a vision therapy program, which generally leads to significant improvements.

The purpose of vision therapy is to make ordinary tasks easier to complete and reduce the challenges that both you and your autistic child confront on a daily basis.

Please note that vision therapy should be a part of an interdisciplinary strategy aimed at improving a patient’s capacity to function and enhance their quality of life.

Dr. Terry Tsang Optometry, Inc. serves patients from Tustin, Lake Forest, Newport Beach, and Mission Viejo, California and surrounding communities.

Q: How long does vision therapy take to work?

• A: Although it varies from person to person, most children will see a difference within the first 10 weeks. Adult vision therapy takes a little longer because adult brains are less flexible than children’s brains.

Q: What is vision therapy?

• A: Vision therapy is a specific program that involves a series of progressive therapeutic eye exercises that help patients improve their visual abilities. Their visual abilities improve as their eyes and brain communicate more effectively. It’s a one-of-a-kind, treatment program that’s usually combined with vision correction (glasses or contacts, such as in the case of myopia or presbyopia).

When most people think of vision, they think of how well a person can see up close or from afar. Many schools perform a simple vision screening to identify students who may be having difficulty seeing the board in the classroom.

Unfortunately, these vision screenings don’t evaluate a child’s functional vision, which comprises all of the fundamental visual skills required for learning.

As a result, many children with inadequate vision skills go undiagnosed and end up struggling in school and on the sports field. Often, these children are considered clumsy and sluggish and tend to be misdiagnosed and labeled as having a learning disability, dyslexia or ADHD.

Improving visual skills enables many of these students to read more effortlessly, boost grades and improve athletic performance.

Visual skills can be learned and retrained with vision therapy, particularly during childhood and adolescence, when the brain is still developing.

What Is Vision Therapy?

Vision therapy is a specialized treatment program that aims to enhance visual processing by developing and/or improving the communication between the eyes and the brain. The training is typically made up of specialized lenses, prisms, and eye exercises.

The following eye conditions can be effectively treated with vision therapy:

• Amblyopia (lazy eye)
• Strabismus (eye turns)
• Convergence insufficiency
• Eye movement problems
• Binocular vision problems
• Accommodative/focusing disorders
• Visual processing difficulties
• Visual disturbances from a brain injury

Vision Therapy Can Boost Your Child’s Confidence

Children who endure difficulty in school or on the sports field in reaction to subpar visual skills tend to feel frustrated that they cannot perform like their peers. This, in turn, affects their confidence levels and may lead them to exhibit behavioral issues and thwart their ability to make friends.

Vision therapy has been shown to transform lives. Children who previously struggled to read or catch a ball due to a deficit in visual skills usually see a significant improvement in their abilities and results in increased self-confidence and competence.

Vision therapy can help a child become a better student and achieve his or her academic goals. Moreover, vision therapy can be indispensable when preparing for higher education, since accomplishments can lead to a greater belief in one’s own talents and abilities. This newfound self-assurance will undoubtedly spill over into other areas, improving the child’s quality of life.

Don’t let your child’s visual dysfunction prevent them from experiencing self-confidence and self-assurance. Contact Dr. Terry Tsang Optometry, Inc. to learn how vision therapy can unlock your child’s hidden potential.

Dr. Terry Tsang Optometry, Inc. provides vision therapy and other services to patients from Tustin, Lake Forest, Newport Beach, Mission Viejo, and throughout California.

Q: How long does a vision therapy program last?

• A: Since each case differs based on the nature and severity of the visual condition, there is no defined time limit. Patients can observe progress after just a few sessions, but treatment might last for several months. In general, once a child has completed a vision therapy program, the effects are permanent.

Q: How young can a child start vision therapy?

• A: Children as young as 5-6 years old can begin vision therapy, but formal in-office sessions are recommended for children aged 7 and up since they are better able to follow instructions.

 

Brain scans show that up to 80% of the sensory input that the brain receives comes through vision. In fact, no other sense takes up as much brainpower or contributes to learning as much as vision does.

So, if a child is having learning difficulties, it may be time to take a closer look at how well their visual system is functioning.

How are Vision and Learning Linked?

Experts agree that the majority of classroom learning is based on a child’s vision and the functioning of their visual system. Optimal visual skills allow a child to read easily, process visual information efficiently and concentrate for extended periods of time.

Children with visual problems may experience difficulties with writing, reading, math, sports and even social skills. Poor vision can also cause a child to withdraw in the classroom and shy away from raising their hand to answer questions.

What Can Parents Do for Their Children’s Vision?

Know the Warnings Signs to Watch For

Bring your child to your family’s optometrist if you notice any of the following signs or symptoms:

• Reading or learning difficulties
• Poor attention or concentration
• Frequent eye rubbing
• Disinterest or refusal to engage in visually demanding activities
• Squinting or closing one eye while reading
• Frequent head tilting
• Headaches or eye strain
• Short attention span, especially when reading
• Poor reading comprehension
• Poor hand-eye coordination

Schedule Regular Eye Exams

A child’s vision can change rapidly. The only way to detect changes in your child’s visual system is through regular comprehensive eye exams with an optometrist. Even the most motivated child may not be aware that something is wrong with their vision and believe that they see the way everyone else does.

Parents, please take note: School vision screenings are not enough, as they only check for a handful of vision problems and don’t take into account the important visual skills needed for efficient learning. Moreover, school vision screenings fail to identify up to 75% of children with visual problems.

To make sure this doesn’t happen to your child, it’s recommended that they get their vision evaluated with an optometrist annually, or as often as their eye doctor recommends.

Consider Vision Therapy

If your child is diagnosed with a vision problem, there is hope!

Your optometrist may recommend a custom-made vision therapy program to target the root cause of the issue and correct the problem. Children who complete vision therapy often do better in school, start to enjoy reading and have more confidence.

If your child is struggling with any aspect of classroom learning or homework or is exhibiting behavioral problems, bring them in for a functional vision assessment to rule out visual dysfunction as an underlying cause or contributor.

To schedule your child’s appointment and learn more about what we offer, call Dr. Terry Tsang Optometry, Inc. today!

Dr. Terry Tsang Optometry, Inc. serves patients from Tustin, Lake Forest, Newport Beach, and Mission Viejo, California and surrounding communities.

Q: What is vision therapy?

• A: Vision therapy is an in-office series of visual exercises that help enhance and strengthen the communication between the brain and eyes. This specialized form of vision care helps treat adults and children with conditions like crossed-eyes and eye-turn, as well as problems with eye tracking, eye teaming, convergence insufficiency and hand-eye coordination, among others.

Q: How long does a vision therapy program last?

• A: There is no set length of time since each case varies depending on the type and severity of the visual condition. Patients can see results within a few sessions but may continue treatment for several months. Generally speaking, once a child completes a vision therapy program, he or she experiences lasting results.

A vision problem may directly impact a child’s performance in the classroom and on the sports field, negatively affecting self-esteem and confidence levels. Given that an estimated 80% of learning is visual, good vision can be the difference between making the game-winning catch and watching the opposing team score runs.

An estimated 25% of children have an undetected vision problem holding them back from succeeding in school and sports. If your child is struggling to keep up with their peers in the classroom or on the sports field, they may have certain lagging visual skills. Any of the following 20 signs may indicate that your child has a vision problem.

20 Signs of Child May Have a Vision Problem

1. Blurred vision
2. Double vision
3. Headaches
4. Eye strain or fatigue
5. Sensitivity to bright light
6. Excessive blinking or squinting
7. Drifting or turning of one eye
8. Poor eye-hand coordination
9. Misjudging distances while moving in space
10. Frequently falling or bumping into objects
11. Difficulty maintaining attention
12. Closing one eye while reading
13. Turning or tilting head while reading
14. Reduced reading speed or fluency
15. Difficulty with reading comprehension
16. Skipping words or lines of text while reading
17. Losing place while reading
18. Seeing words floating on the page
19. Bringing text close to or far away from eyes to improve clarity
20. Difficulty copying text

Keeping your eye out for telltale behaviors and symptoms is the first step in identifying a vision problem. The next step is to visit your [eye-doctor], who will assess your child’s functional vision. If any lagging visual skills are identified, your child may greatly benefit from vision therapy.

How Can Vision Therapy Help?

Vision therapy is a specialized program designed to improve the eye-brain connections in order to strengthen the visual skills necessary for academic and athletic success.

Each vision therapy program is customized to the individual needs of the patient and may include the use of lenses, prisms, occluders, filters and other equipment.

Is your child showing signs of a vision problem? Call Dr. Terry Tsang in Dr. Terry Tsang Optometry, Inc. to schedule an appointment for a comprehensive vision evaluation.

Dr. Terry Tsang Optometry, Inc. serves patients from Tustin, Lake Forest, Newport Beach, and Mission Viejo, all throughout California.

Frequently Asked Questions with Dr. Terry Tsang

Q: Isn’t 20/20 Vision Good Enough?

• A: Vision involves a lot more than just how clearly you can see from a distance of 20 feet. There are 17 visual skills that are absolutely essential for success in reading, writing, math, and even athletics. A problem with any of these visual skills can cause poor academic and athletic performance.A comprehensive eye exam is the best way to rule out any vision problems that may be getting in the way of your child’s success.

Q: Why Are Comprehensive Eye Exams Important?

• A: Basic vision screenings conducted at schools or by pediatricians may detect a distance vision problem, but they cannot detect other vision problems that can interfere with learning. During a comprehensive eye exam, your eye doctor will not only determine your prescription for eyeglasses or contact lenses but will also check your eyes for common eye diseases, assess how your eyes work together as a team, and evaluate your eyes as an indicator of your overall health.

 

Amblyopia, commonly known as ‘lazy eye,’ is a neuro-developmental vision condition that begins in early childhood, usually before the age of 8.

Lazy eye develops when one eye is unable to achieve normal visual acuity, causing blurry vision in the affected eye—even when wearing glasses. Left untreated, amblyopia can lead to permanent vision loss in one eye.

It’s important to understand that a lazy eye isn’t actually lazy. Rather, the brain doesn’t process the visual signals from the ‘lazy’ eye. Eventually, the communication between the brain and the weaker eye deteriorates further, potentially leading to permanently reduced vision in that eye. Fortunately, vision therapy can improve the condition by training the brain to work with both eyes equally.

What Causes Lazy Eye?

When the neural connections between the eyes and the brain are healthy, each eye sends a visual signal to the brain. The brain combines these two signals into one clear image, allowing us to properly see what we are looking at.

In the case of amblyopia, the brain doesn’t recognize the weaker eye’s signals. Instead, it relies only on the visual input from the stronger eye.

Amblyopia can be caused by strabismus, anisometropia and deprivation.

Strabismus

Strabismus occurs when the eyes are misaligned and point in different directions. The most common cause of amblyopia is eye misalignment, which causes the brain to receive two images that cannot be combined into one single, clear image.

A child’s developing brain cannot process images when both eyes are not aligned in the same direction, so it ‘turns off’ the images sent by the weaker eye. This is the brain’s defense mechanism against confusion and double vision.

As the brain ‘turns off’ the weaker eye, this eye will eventually become ‘lazy’—unless treatment is provided.

Anisometropia

Anisometropia is when the refractive powers (visual acuity) of your eyes differ markedly, causing your eyes to focus unevenly – rendering the visual signal from one eye to be much clearer than the other. The brain is unable to reconcile the different images each eye sends and chooses to process the visual signal from the eye sending the clearer image. The brain begins to overlook the eye sending the blurrier image, further weakening the eye-brain connection of the weaker eye. If not treated, this results in permanent poor vision in that eye.

Deprivation

Deprivation refers to a blockage or cloudiness of the eye. When an eye becomes cloudy, it directly impacts the eyes’ ability to send a clear image to the retina, harming the child’s ability to see images clearly from that eye. When clear images can’t reach the retina, it causes poor vision in that eye, resulting in amblyopia. Deprivation is by far the most serious kind of amblyopia, but it is also incredibly rare.

There are several types of deprivation: cataracts, cloudy corneas, cloudy lenses and eyelid tumors. Each of these can affect a child’s vision, resulting in amblyopia. Because these are also difficult to notice from a child’s behavior, it’s crucial to have your child tested for eye-related problems so that treatment can begin right away.

How To Treat Amblyopia

The goal of most amblyopia treatments is to naturally strengthen the weaker eye so that your child’s eyes can work and team with the brain more effectively. Amblyopia treatment will be determined by the cause and severity of their condition.

Common types of treatment include:

• Corrective eyewear
• Eye drops
• Patching
• Vision Therapy

Vision Therapy

Vision therapy is the most effective treatment for amblyopia, which may be used in conjunction with other treatments.

A vision therapy program is customized to the specific needs of the patient. It may include the use of lenses, prisms, filters, occluders, and other specialized equipment designed to actively make the lazy eye work to develop stronger communication between the eye and the brain.

Vision therapy is highly successful for the improvement of binocular vision, visual acuity, visual processing abilities, depth perception and reading fluency.

Vision therapy programs for amblyopia may include eye exercises to improve these visual skills:

• Accommodation (focusing)
• Binocular vision (the eyes working together)
• Fixation (visual gaze)
• Pursuits (eye-tracking)
• Saccades (eye jumps)
• Spatial skills (eye-hand coordination)
• Stereopsis (3-D vision)

Contact Dr. Terry Tsang Optometry, Inc. to make an appointment and discover how vision therapy can help improve your child’s vision. Our eye doctor will ask about your child’s vision history, conduct a thorough evaluation, and take your child on the path to effective and lasting treatment.

Q: How do I know if my child has lazy eye?

• A: It’s difficult to recognize lazy eye because the condition usually develops in one eye, and may not present with a noticeable eye turn. As such, children generally learn how to ignore the lazy eye and compensate by mainly relying on the sight from the ‘good’ eye. Some symptoms of lazy eye include:
• – Closing one eye or squinting
  – Difficulty with fine eye movements
  – Poor depth perception
  – Poor eye-hand coordination
  – Reduced reading speed and comprehension
  – Rubbing eyes often

Q: How is lazy eye diagnosed?

• A: Your child’s eye doctor will conduct specific tests during their eye exam, to assess the visual acuity, depth perception and visual skills of each eye.

Dr. Terry Tsang Optometry, Inc. serves patients from Tustin, Lake Forest, Newport Beach, and Mission Viejo, all throughout California.

There’s a lot of misinformation out there, especially when it comes to vision therapy — a customized program that trains the eyes and brain to work together more effectively and efficiently.

We are here to dispel those myths.

5 Myths and Facts about Vision Therapy

1. Myth: Vision therapy is just for children

Fact: People of all ages can benefit from vision therapy.

Although vision therapy is widely prescribed for younger patients, many adults have benefited from a personalized vision therapy program. That’s because the basis of vision therapy is neuroplasticity — the brain’s ability to change and learn new habits.

Your brain is capable of forming new neural pathways throughout your entire life, so vision therapy can be effective at any age.

2. Myth: Vision therapy isn’t based on scientific research

Fact: There are numerous scientific studies that prove the effectiveness of vision therapy, funded and published by the National Eye Institute (NEI).

In fact, according to several studies, vision therapy is the most effective treatment for the most common binocular vision problem, convergence insufficiency. Research also supports the efficacy of vision therapy when it comes to lazy eye (amblyopia), eye turn (strabismus), and difficulties related to reading and learning.

3. Myth: All vision therapy is the same

Fact: No two vision therapy treatments are alike. Each patient’s condition is unique and is treated accordingly.

Vision therapists use a host of different exercises, devices, computer programs, lenses, prisms, and other equipment for treatment. Your optometrist will decide which options will benefit your condition.

4. Myth: Eye surgery is the only option for treating eye misalignment

Fact: While surgery may help the eyes appear more aligned, it can’t fully improve binocular function.

In other words, surgery corrects the physical problem of alignment but doesn’t teach the eyes and brain to work together. That’s why vision therapy is often recommended for patients who have had strabismus surgery or are considering it.

5. Myth: I don’t need vision therapy, I have 20/20 eyesight

Fact: Vision therapy has little to do with eyesight, and everything to do with how your eyes function.

Even a person with 20/20 eyesight can have poor tracking skills, eye movement skills, depth perception, and other visual deficits.

In fact, you may have poor visual skills and not even know it. If you experience symptoms like headaches, dizziness, nausea, eyestrain, or difficulty with concentrating and reading, it may be time to have your vision evaluated by a vision therapist to identify any underlying problems related to your visual skills.

To schedule a functional vision evaluation for you or your child, call Dr. Terry Tsang Optometry, Inc. today!

Dr. Terry Tsang Optometry, Inc. serves patients from Tustin, Lake Forest, Newport Beach, Mission Viejo, and throughout California.

Q: #1: What is vision therapy?

• A: Vision therapy is a program of [curtomized] eye exercises that are performed in-office with an at-home component as well. Vision therapy helps develop the visual system and trains the eyes and brain to work in unison. Duration of treatment varies from patient to patient, as each person responds differently. Speak to us to learn more about what we offer and how we can help.

Q:#2: Is vision therapy covered by insurance?

• A: Vision therapy may be covered under major medical insurance plans (vision therapy is most often applied to a medical policy as opposed to a vision policy). However, certain insurance companies may deny or place severe limits on coverage for vision therapy as a cost-saving measure. When sorting out the insurance details for vision therapy, it’s important to know what questions to ask of your insurance agent or workplace HR department.

You may have heard of vision therapy in the context of helping adults and children with a lazy eye, eye turn, or learning difficulties.

But did you know that in some cases, vision therapy may also be effective in preventing, reducing, or slowing myopia (nearsightedness)?

While it’s true that scientists haven’t yet found a cure for myopia, vision therapy may help by targeting certain contributing factors of myopia.

To assess whether vision therapy is right for your child, call Dr. Terry Tsang Optometry, Inc. in Irvine today.

But First, How Does Vision Therapy Work?

To give you a better sense of what vision therapy is, here are some facts. Vision therapy:

• Is a non-invasive set of visual exercises tailored to your specific needs
• May involve the use of specialized prisms or filters, computerized aids, balance beams, and other therapeutic tools
• Trains the brain and eyes to work as a team
• Develops visual skills like eye tracking, teaming, accommodation, convergence, visual processing, visual memory, focusing, and depth perception
• May involve an at-home component, like daily visual exercises
• Is evidence-based. Published data has shown that it can be an effective program to improve reading, learning, overall school and sports performance

How Does Vision Therapy Relate To Myopia?

While vision therapy may not be able to fully reverse or treat myopia, some nearsighted people appear to benefit from it.

Some vision therapists have reported patients’ myopia improvement during or after the vision therapy process. This may be due to a strengthened visual skill called accommodation—the eyes’ ability to maintain clear focus on objects. Poor focusing skills have been linked to myopia. In fact, research shows that having an accommodation lag (when the eyes can’t pull the focus inwards enough to clearly see a very close object) could be a risk factor for myopia development and progression. That said, it’s worth noting that research findings are still mixed on this matter.

Accommodative spasm, also known as “pseudo-myopia,” occurs when the eyes lock their focus on a near object and then have difficulty releasing the focus to view distant objects. The reason this is considered a false myopia is because it has to do with the focusing mechanism of the lens rather than the elongation of the eye, the main characteristic of myopia.

Pseudo-myopia can be treated with vision therapy, assuming the accommodation spasm is the only culprit for blurred distance vision. In this case, the patient may no longer need to wear prescription lenses for vision correction following a successful vision therapy program,

So what’s the bottom line?

In some cases, vision therapy may be able to improve a person’s blurry vision—but research on the subject is ongoing.

If you or your child has myopia and you’re curious as to whether vision therapy can help, schedule a functional visual assessment for your child.

To schedule your appointment with Dr. Terry Tsang, call Dr. Terry Tsang Optometry, Inc. today.

 

Q: #1: Who can benefit from vision therapy?

• A: Children and adults with visual dysfunction can benefit from a personalized program of vision therapy. Visual dysfunction can manifest in many ways, including—but not limited to—behavioral and learning problems, coordination difficulties, headaches, dizziness, nausea, anxiety, and attention deficits.

Q: #2: Do all optometrists offer vision therapy?

• A: No. You should only seek vision therapy from a qualified optometrist experienced in offering vision therapy for a variety of visual disorders. Other types of therapists sometimes claim to offer vision therapy, but only an eye doctor can prescribe the necessary visual treatments for optimal results.
• Dr. Terry Tsang Optometry, Inc. serves patients from Tustin, Lake Forest, Newport Beach, Mission Viejo, and throughout California.