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What Is Post Traumatic Vision Syndrome?

What Is Post Traumatic Vision Syndrome 640×350Every year, tens of millions of people around the world sustain a traumatic brain injury (TBI). The majority of TBIs are mild brain injuries, such as concussions. However, concussions and other traumatic brain injuries often result in some degree of visual dysfunction, as nearly half of the brain is dedicated to vision-related processing.

The symptoms of post-TBI visual disturbances fall under the umbrella term post-traumatic vision syndrome (PTVS).

What is Post Traumatic Vision Syndrome?

Post Trauma Vision Syndrome is a disruption of the visual process. This disruption affects the neurological system that innervates the extraocular muscles that control eye movements, as well as the system that regulates focusing. This causes eye problems like difficulty with fixation, binocular fusion, and accommodative function.

What Are the Symptoms of PTVS?

Even with 20/20 vision, a TBI can cause the following visual dysfunctions:

  • Blurred vision
  • Double vision
  • Low blink rate
  • Depth-perception issues
  • Difficulty with eye-tracking
  • Sensitivity to light (photophobia)
  • Eye strain, especially while reading or using a computer

Non-visual symptoms may include:

  • Dizziness
  • Headaches
  • Poor balance
  • Disorientation
  • Difficulty reading
  • Difficulty driving
  • Difficulty concentrating
  • Visual memory problems
  • Difficulty navigating through crowded or tight spaces

How Does a Neuro-Optometrist Treat PTVS?

Your neuro-optometrist will assess your ocular health as well as a wide range of visual abilities, including eye alignment and convergence function, focusing ability, peripheral awareness and more.

If deficits are discovered, your neuro-optometrist will create a neuro-optometric rehabilitation program to improve any visual skills that have been harmed by the brain injury. The program may utilize specialized glasses or prisms to improve spatial and/or binocular vision.

It’s crucial to get treatment for PTVS as soon as possible to minimize deficits and regain quality of life. However, neuro-optometric rehabilitation can be effective even months or years after a TBI.

Schedule a consultation with A-Ha Vision to start treatment for your PTVS today.

A-Ha Vision serves patients from Oakville, Burlington, Halton, and Mississauga, Ontario and surrounding communities.

Frequently Asked Questions with Dr. Shirley Ha

Q: What is neuro-optometric rehabilitation therapy?

  • A: Neuro-optometric rehabilitation is a personalized program to develop, improve and refine underdeveloped or lost visual skills. This specialized treatment involves eye exercises, techniques and visual aids (i.e. prisms) that improve your visual processing and perception through the strengthening of the eye-brain connection.

Q: Is my concussion impairing my reading?

  • A: Many patients suffering from PTVS experience reading difficulties after their injury. Words might appear to be moving on the page or blurry. Another possible problem is not being able to remember what you just read, even after rereading it several times.

Request A Functional Visual Exam
Find Out How We Can Help You! 905-674-5978

Children’s Vision and Learning Awareness

Children’s Vision and Learning Awareness 640×350Brain 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 A-Ha Vision today!

A-Ha Vision serves patients from Oakville, Burlington, Halton, and Mississauga, Ontario and surrounding communities.

Frequently Asked Questions with Dr. Shirley Ha

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.

Request A Functional Visual Exam
Find Out How We Can Help You! 905-674-5978

Elevate Your Game on the Baseball Field With Sports Vision Training

Improve How You Play Baseball With Sports Vision Training 640×350Hitting a baseball out of the park is widely regarded as one of the most difficult sporting challenges. In Major League Baseball (MLB), batters have less than half a second to meet a 90-mph fastball with the sweet spot of their bat. There is almost no other specialized action in any sport that puts a player’s visual system under such strain.

So why don’t coaches and managers ask their players to utilize sports vision training to boost their performance on the field?

That’s because the value of sports vision training is underappreciated. Many athletes, parents, and coaches don’t realize the central role that visual skills play in athletic ability, and are ignorant of the numerous ways to develop them.

Recognizing A Pitch

There are many kinds of pitches: fastballs, curveballs, screwballs and more.

Batters have only a fraction of a second to identify the type of pitch and react accordingly. Keeping an eye on the ball and assessing speed, motion and direction are highly demanding for a player’s neuro-visual system.

5 Essential Visual Skills for Keeping Eyes on the Ball

  • Convergence – Perfect convergence of both eyes is needed to follow a ball as it flies towards you.
  • Depth perception – In order to assess the distance, speed, and direction of a fast-moving ball, accurate depth perception is needed.
  • Peripheral vision – Is required to stop a base-stealer and achieve that double-play.
  • Eye teaming – To keep track of a flying ball, the eyes must be perfectly synchronized.
  • Speed of focus – Your eyes must constantly refocus when a ball is racing toward you at 70 to over 90 miles per hour.
  • Visual processing speed – It’s critical for the brain to be able to quickly process all of the visual information sent to it.

Sports Vision Training for Baseball

Just as intense physical exercise helps baseball players boost their physical endurance, strength, speed and fine motor skills, sports vision training helps them improve their depth perception, focusing and visual processing speed.

A sports vision training program is customized for each player based on an evaluation of their visual skills with a specific focus on baseball requirements.

To start boosting your visual skills and performance, contact Dr. Shirley Ha at A-Ha Vision today.

We train athletes from Oakville, Burlington, Halton, and Mississauga, Ontario and surrounding communities.

Frequently Asked Questions with Dr. Shirley Ha

Q: What is sports vision training?

  • A: Sports vision training is a custom-made program that improves coordination between your eyes, body and brain while playing sports. It involves exercises and techniques that help athletes process the information their eyes are sending the brain more quickly and accurately.

Q: Who can benefit from sports vision training?

  • A: Whether you’re pitching or up at bat, sports vision training is perfect for anyone of any age and ability seeking to take their performance to the next level.

Does your Child Have a Vision Problem? Here are 20 Signs to Look Out For

Does your Child Have a Vision Problem640x350A 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. Shirley Ha in A-Ha Vision to schedule an appointment for a comprehensive vision evaluation.

A-Ha Vision serves patients from Oakville, Burlington, Halton, and Mississauga, all throughout Ontario.

Frequently Asked Questions with Dr. Shirley Ha

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.

 

Request A Functional Visual Exam
Find Out How We Can Help You! 905-674-5978

3 Ways To Unlock Your True Athletic Potential

Sports Vision Training Improves Sports Performance ThumbnailAs an athlete, it’s important to be aware of your surroundings and be able to gauge distances. This is where sports vision training comes into play. Sports vision is about training people to process what their eyes see, better and faster. It’s an effective way to boost the visual skills you need to excel at your chosen sport and stay safe while doing it.

3 Ways Sports Vision Training Can Improve Your Game

Having strong, well-developed visual skills enhances your ability to catch, throw, and hit a ball, allowing you to thrive in sports like baseball, basketball and tennis. By sharpening your peripheral awareness, depth perception, and eye-tracking and focusing abilities, you will be able to better gauge the distance between a tennis ball and the net, or the proximity of another player as you sprint across the field.

1. Enhanced Convergence and Accommodation

Convergence is the ability to keep both eyes working in tandem as they track objects or people, such as a player passing a ball. Accommodation, also known as focus flexibility, is the eyes’ ability to immediately change focus.

Improving your eye-focusing abilities will help you concentrate better, and swiftly and precisely refocus your vision. This makes it easier to quickly process moving objects.

2. Enhanced Depth Perception

Depth perception is the ability to judge the distance between you and people or objects, and allows you to see in three dimensions. Individuals with good depth perception have an easier time recognizing an object as it approaches because they can see where it is in space. When a baseball player makes a spectacular catch or steals a base, depth perception is one of the visual skills they most rely on.

3. Enhanced Peripheral Awareness

Peripheral awareness, also known as peripheral vision, enables us to detect and see things that aren’t directly in front of us while looking straight ahead. A well-developed peripheral field helps soccer players, tennis players and cyclists see people and objects at the edge of their visual field and sense the flow of the game or traffic as it constantly changes.

The sharper your visual skills are, the better you will be at whatever sport you participate in. Your eye doctor will assess your vision in specific areas to identify weak areas that need strengthening. After that, you’ll be prescribed a customized sports vision training program that will include a series of personalized eye exercises and assessments to measure your progress.

To learn more about how sports vision training can help you become a better athlete, contact A-Ha Vision today!

 

Frequently Asked Questions with Dr. Shirley Ha

Q: What is sports vision training?

  • A: Sports vision training is a personalized program that improves the communication between your eyes, body and brain while playing sports. Enhanced communication between your eyes and brain leads to improved visual skills, allowing an athlete to unlock their fullest potential. Sports vision training uses a customized series of techniques and exercises, resulting in the brain and body learning to respond more efficiently and accurately to what the eyes are seeing.

Q: Who can benefit from sports vision training?

  • A: Whether you’re a golfer, play hockey or ski, sports vision training is perfect for anyone of any age who wants to take their performance to the next level.
A-Ha Vision serves patients from Oakville, Burlington, Halton, and Mississauga, all throughout Ontario.


4 Tips To Avoid a Traumatic Brain Injury

4 Tips To Avoid a Traumatic Brain Injury 640×350A traumatic brain injury, or TBI, is an injury to the brain caused by physical trauma, typically a sudden bump or blow to the head.

Concussions — a mild form of brain injury — are very common and represent approximately 80% of all TBI incidents. A concussion is a temporary loss of brain function caused by the brain bouncing around in fast motion within the skull, sometimes producing chemical changes or damaging the functioning of the brain cells.

Moderate to severe TBIs can cause loss of consciousness— from a few minutes to several hours.

Any TBI, whether mild or severe, can affect cognitive abilities and cause visual symptoms such as:

  • Double vision
  • Light sensitivity
  • Partial or total loss of vision
  • Weakened eye muscles

4 Tips for Avoiding a Traumatic Brain Injury

One of the best ways to protect yourself from a concussion or more serious TBI is to put safety first, whatever your activity.

Wear Protective Sports Gear

Approximately 69 million TBIs occur each year worldwide, of which about 50% are sports-related. Wearing protective eyewear and a helmet when playing baseball, football, basketball, hockey or any other sport, can help prevent serious injuries, especially in children.

Wear Sunglasses

Glare from the sun can temporarily blind you while driving, walking across the street — during any activity, really. Wearing sunglasses is a simple way to reduce glare and prevent glare-related accidents.

Polarized sunglasses filter intense light that reflects off surfaces like water, glass, sand, snow and pavement, preventing glare from entering your eyes. Make sure the sunglasses you choose also offer 100% UV protection. Photochromic lenses are a good choice for people who wear prescription glasses since they darken when outdoors and become clear again indoors.

Pay Attention To Your Surroundings

As basic as it may seem, people often fail to pay attention to their surroundings. When walking, driving, or doing any other activity, try to minimize distractions. Stand still while speaking on your cell phone or texting. When you’re walking outside, keep an eye out for sidewalk cracks as well as overhanging branches and other sharp items or debris that could be hazardous.

Don’t Forget to Wear Your Seatbelt

For years, parents and doctors have been drumming this into our heads, and for good reason! The #1 way to prevent or minimize an injury from a car accident is by wearing a seatbelt.

According to the National Center for Biotechnology Information National Library of Medicine, one-quarter of all TBIs in North America are caused by road accidents. Those numbers rise to more than 50% in Southeast Asia and Africa.

How a TBI Affects Vision

A traumatic brain injury can impair your vision, causing light sensitivity, double or blurry vision, and persistent eye strain. In many cases, activities like reading a book, driving a car or watching TV can become much more challenging — or impossible — as a result of a TBI.

According to Clinical and Experimental Optometry, 90% of TBI patients suffer from visual dysfunction, making it all the more crucial to take precautionary measures to stay safe.

Neuro-Optometric Rehabilitation Can Help With Brain Injuries

Neuro-optometric rehabilitation is a personalized treatment program for patients with visual deficits due to physical disabilities and TBIs. The goal of neuro-optometric rehab is to minimize visual disability so that a patient can continue to perform daily activities, whether it’s learning in a classroom or being able to function in the workplace.

A neuro-optometric rehabilitation optometrist evaluates many functions of the visual system, such as how the eyes work together. Treatment options may include the use of various filters and prisms, and visual exercises to strengthen the brain-eye connection.

If you or a loved one displays double vision, light sensitivity, dizziness or any other TBI-related visual or balance-related symptoms, contact A-Ha Vision immediately. Following evaluation, Dr. Shirley Ha may offer a customized neuro-optometric rehabilitation program to help regain any lost visual skills.

Frequently Asked Questions with Dr. Shirley Ha

Q: What Does a Neuro-Optometrist Do?

A: A neuro-optometrist diagnoses general eye health problems and corrects refractive errors to improve visual acuity, as well as assess functional binocularity, spatial vision, and visual processing abilities.

Q: What causes a TBI?

A: Traumatic brain injuries can occur during everyday activities like walking, swimming, hiking, running or playing competitive sports.

The most common causes of TBIs are:

  • Being struck by an object
  • Falls
  • Motor vehicle accidents
  • Sports injuries


A-Ha Vision serves patients from Oakville, Burlington, Halton, and Mississauga, all throughout Ontario.

 

Request A Functional Visual Exam
Find Out How We Can Help You! 905-674-5978

3 Ways Neuro-Optometry Can Help Stroke Survivors

3 Ways Neuro Optometry Can Help Stroke Survivors 640Approximately 15 million people around the globe suffer from a stroke each year. An alarming two-thirds of stroke survivors experience some degree of visual dysfunction after the incident.

These problems can range from irritating to debilitating and can seriously affect a person’s quality of life and ability to function.

Thankfully, there is hope for stroke survivors who suffer from stroke-related vision problems.

At A-Ha Vision, we are dedicated to helping post-stroke patients heal their visual system for long-lasting relief and a better quality of life.

Below, we’ll explore how a stroke can impact vision and what a neuro-optometrist can do to help.

What is a Stroke?

A stroke occurs when insufficient oxygen is delivered to the brain tissue, either due to leaking or bursting blood vessels, or a blockage within the blood vessel.

Serious brain damage can occur within minutes of a stroke, making early intervention crucial.

Signs of a stroke include:

  • Paralysis
  • Numb or weak limbs
  • Slurred speech
  • Confusion
  • Trouble walking
  • Dizziness or loss of coordination

Because a large portion of the brain is involved with vision, a stroke can also affect the eyes and visual processing.

How a Stroke Can Affect Vision

If a stroke occurs in the areas of the brain that control the eye, it can cause:

  • Blurred vision
  • Visual field loss
  • Double vision
  • Dry eye syndrome
  • Sensitivity to light
  • Nystagmus — rapid, uncontrolled eye movements

When a stroke affects the areas of the brain responsible for visual processing, it can cause:

  • Visual neglect — when the patient ignores stimuli from a portion of their visual field
  • Visual hallucinations
  • Poor depth and movement perception
  • Difficulty recognizing objects or people

3 Ways a Neuro-Optometrist Can Help Stroke Survivors

1. Identify and Diagnose Any Visual Dysfunction

A neuro-optometrist has the training and experience required to thoroughly identify, diagnose and treat even slight visual dysfunction that may be causing symptoms.

Your neuro-optometrist will perform a functional visual evaluation to assess neurological vision-related complications and identify the type of vision loss caused by the stroke.

 

2. Rehabilitate the Visual System

Neuro-optometric rehabilitation therapy includes visual exercises that retrain the brain and eyes to work together.

During a stroke, certain neural connections may become damaged. Neuro-optometric rehabilitation aims to restore those connections and heal the visual system for long-lasting results.

3. Prescribe the Correct Lenses or Prisms, As Needed

A neuro-optometrist can prescribe specialized lenses or prisms that aid in the therapeutic process. Prism lenses shift images into the functioning part of a patient’s visual field, or, in the case of double vision or visual neglect, unite the images the two eyes are sending to the brain. In some cases, prisms can instantly relieve symptoms like disorientation or double vision.

Some patients only visit an occupational therapist or physical therapist after a stroke—and while these therapies are often necessary and helpful, they cannot treat the visual system or prescribe prisms.

How We Can Help

Stroke survivors deserve the best in rehabilitative care. That’s why we are passionate about restoring their independence and offering relief from incapacitating visual symptoms.

Furthermore, neuro-optometric rehabilitation therapy offers the added benefit of diminishing vertigo and depression and increasing confidence levels.

If you or a loved one has suffered a stroke, we can help. To schedule your functional visual evaluation, contact A-Ha Vision today.

A-Ha Vision serves patients from Oakville, Burlington, Halton, and Mississauga, all throughout Ontario.

 

Frequently Asked Questions with Dr. Shirley Ha

Q: #1: Other than stroke patients, who can benefit from neuro-optometric rehabilitation therapy?

  • A: Neuro-optometric rehabilitation therapy can help any person suffering from visual dysfunction after a head injury, traumatic brain injury or stroke, or anyone with neurological conditions that impact their vision. If you experience any symptoms associated with visual dysfunction like dizziness, disorientation, headaches, nausea or difficulty concentrating— it may be time to visit your neuro-optometrist.

Q: #2: Can neuro-optometry help if the stroke occurred months or years ago?

  • A: The best time to start treatment is as soon as possible following a stroke or head injury, but treatment can also be effective years later. The basis of neuro-optometry is neuroplasticity—the brain’s ability to change and build new neural connections. As long as a person is alive, there is potential to heal their visual system.


Request A Functional Visual Exam
Find Out How We Can Help You! 905-674-5978

3 Causes of Lazy Eye in Children

3 Causes of Lazy Eye in Children 640Amblyopia, 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 A-Ha Vision 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.

Frequently Asked Questions with Dr. Shirley Ha

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.


A-Ha Vision serves patients from Oakville, Burlington, Halton, and Mississauga, all throughout Ontario.

Request A Functional Visual Exam
Find Out How We Can Help You! 905-674-5978

Looking To Improve Your Athletic Performance This Summer?

Looking To Improve Your Sports Performance This Summer 640It’s finally summer—and there’s no better time to play outdoor sports! But if you’re like many of us, you may be a little rusty from the long winter months. While physical training is important to get back into gear, sports vision training can take you a step further by helping you hone the visual skills you need to excel at your chosen sport.

Sports vision training is a personalized program that helps professional and amateur athletes improve the way their eyes, brain and body interact. The quicker the brain processes the messages the eyes send, the better the performance.

Benefits of Sports Vision Training

Strong, well-developed visual skills can help you improve your ability to hit a tennis ball or perform the perfect dive in the swimming pool.

Sharpening your tracking, depth perception, focusing and peripheral awareness skills will help determine the proximity of the water from the diving board or the distance between a baseball and your bat. It should come as no surprise that vision training helps athletes improve their performance in just about any sport.

Sports vision training helps develop the following visual skills:

  • Balance – the ability to stay in control of body movement. A surfer, for example, must be able to stand on the board without falling off, all while riding a wave.
  • Eye Tracking – the ability to “keep your eye on the ball.”
  • Focusing – the ability to rapidly change focus from one object to another efficiently and quickly. For example, in baseball, a player needs to be able to focus on the ball while running.
  • Eye-Hand or Eye-Body Coordination – the ability to use your eyes to direct the movements of your hands and body. In tennis, for instance, a player must be able to move his or her body and hands while tracking the ball.
  • Peripheral Awareness – seeing things or people, such as opposing players, out of the corner of your eye.
  • Depth Perception – the capacity to evaluate an object’s speed and distance accurately and quickly. For example, a diver must accurately evaluate the distance from the edge of the pool in order to dive safely.
  • Contrast Sensitivity – the ability to distinguish between an object and its background, such as a baseball against the sky.
  • Dynamic Visual Acuity – the ability to clearly see objects in motion.
  • Reaction Time – the faster you see it, the faster you react and the faster you move.

During a comprehensive eye exam, your eye doctor will assess your visual skills in various areas to determine which ones need to be improved. Once assessed, you’ll receive a personalized program to boost and expand your visual skills in those areas.

To learn more about sports vision training, contact A-Ha Vision today!

A-Ha Vision serves patients from Oakville, Burlington, Halton and Mississauga, all throughout Ontario.

Frequently Asked Questions with Dr. Shirley Ha

Q: What is sports vision training?

  • A: Sports vision training is a customized program that improves coordination between your eyes, brain, and body when playing sports. Sports vision training helps athletes process information and then react faster and more accurately to what they see on the field or in the water.

Q: Who can benefit from sports vision training?

  • A: Whether for surfing, playing baseball, or biking, sports vision training benefits people of any age or level seeking to take their performance to the next level.


Sports Vision Training Can Help Prevent Scooter Accidents

E Scooter Riders 640When riding an electric scooter, you need to be able to focus on the road, while avoiding cars, pedestrians, and other potential obstacles. It may sound simple, but not everyone has the visual skills needed to focus, scan the surroundings and react in a split-second to an oncoming car or a child who’s run into the street.

At A-Ha Vision, we offer sports vision training, which helps improve visual skills by training the brain to process and respond quickly and efficiently to visual input. This can, in turn, prevent you from getting into an accident.

E-Scooter Riders Need Top-Notch Visual Skills

To stay safe on the road, drivers, motorcyclists, and e-scooter drivers need to have remarkable visual skills, where the ability to focus, track fast-moving objects and react quickly can mean the difference between staying safe and incurring an injury.

Even the smallest increase in processing ability, reaction time and resilience can help prevent injury to yourself and others.

The Visual Skills Needed to Safely Ride an E-Scooter

Improve critical vision skills, such as peripheral awareness, depth perception and eye focusing, with sports vision training, a customized program that improves the communication between your eyes, brain, and body.

1. Peripheral Awareness

Peripheral vision, also known as peripheral awareness, enables us to detect and see things that aren’t right in front of us when looking straight ahead. A well-developed peripheral field helps riders spot people and objects and sense the flow of the road as it changes.

2. Depth Perception

Depth perception is the ability to see in three dimensions and judge the distance between objects or people and yourself.

Those with good depth perception have an easier time accurately tracking any object as it approaches because they can perfectly see where it is in space. This enables one to make split-second decisions about when to swerve or stop to avoid coming in contact with everything from a car to a trash can.

3. Accommodation and Convergence

Accommodation, also known as focus flexibility, is the eyes’ ability to change focus immediately. Convergence is the ability to keep both eyes working in unison as they track people or objects, such as a bus on the road.

Enhancing these eye-focusing skills can boost your ability to concentrate and refocus your vision quickly and more accurately so that you process moving objects quickly.

Want to strengthen your visual skills? Contact Dr. Shirley Ha today!

A-Ha Vision serves patients from Oakville, Burlington, Halton, and Mississauga, all throughout Ontario.

Frequently Asked Questions with Dr. Shirley Ha

Q: What is sports vision training?

  • A: Sports vision training is made of individually prescribed and monitored exercises aimed at developing specific visual skills and processing. These various customized activities and exercises retrain the brain to effectively interact with the eyes and improve vision functioning. This therapy consists of weekly in-office appointments and assigned daily exercises, ranging from several weeks to several months. The training involves close monitoring and follow-up appointments to ensure steady improvements in the patient’s visual functions.

Q: Who can benefit from sports vision training?

  • A: Whether you play hockey or baseball or ride an e-scooter, sports vision training is perfect for anyone of any age and ability seeking to take their performance to the next level.