August 13, 2024

Post Concussion Syndrome Vision Problems

As you are reading this text, your brain is controlling how the incoming information is processed, and how your eyes track, coordinate, and focus.  Post Trauma Vision Syndrome refers to deficits in these areas after…
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Opto-Mization Optometry & Vision Therapy

As you are reading this text, your brain is controlling how the incoming information is processed, and how your eyes track, coordinate, and focus.  Post Trauma Vision Syndrome refers to deficits in these areas after a concussion, head-injury, whiplash, or mild traumatic brain injury (MTBI).  If you have PTVS and your eyes do not work together efficiently, you will have a hard time sustaining your attention and may even end up with a headache or migraine.  Problems with inaccurate eye tracking may cause you to mix up the information, or feel like you struggle to comprehend it.  It has been common to think about ?vision? as just seeing clearly and the physiological health of the eye itself, with almost no attention given to how accurately or efficiently the system works.  The paradigm is now shifting as we understand the importance of the neurological role in eye coordination and information processing, during the last few decades.  With over 50 per cent of the brain involved in the visual function, PTVS is commonly responsible for ongoing symptoms after trauma.

What is Post Trauma Vision Syndrome?

Post Trauma Vision Syndrome is caused by damage to regions of the brain that are involved in various aspects of visual function. This disrupts the stored ?programs? for how the visual system functions.  This damage occurs on the axonal level and often escapes detection by medical imaging.  PTVS encompasses more specific diagnoses like egocentric visual midline shift, ocular motor dysfunction, binocular dysfunction and more.

What are the effects of Post Trauma Vision Syndrome?

Post Trauma Vision Syndrome may affect one or more specific areas of visual function, so the effects can be varied.  PTVS can affect one?s ability to read, comprehend, and sustain attention. It can also cause dizziness/vertigo and headaches/migraines.

Reading:

If you were a marathon runner who sustained an injury that disrupted the coordination of your legs, it would be understandable as to why your running was suffering even if you were physically healthy and in great shape.  It would also be understandable as to why you would not be able to run for as long as before.  When PTVS causes problems with eye tracking and how the eyes are working together it will impact a person?s reading abilities and how long they can sustain the process.  If it becomes difficult to control eye coordination, the reading comprehension will also drop.  This challenge is similar to how hard it is to hold a conversation when you are learning to drive a manual transmission, as all your conscious ability is directed towards just trying to do it.  Vision dysfunctions that affect reading can also indirectly affect any other testing involving reading.

Vestibular, proprioceptive (information from muscles and joints), and visual information all need to accurately integrate together.  PTVS causes the visual system to feed ?garbage? into this collaboration, which will prevent proper integration often causing the person to plateau with vestibular rehabilitation.  Unfortunately, this has led to accusations of malingering when there was truly an unidentified vision problem preventing the rehabilitation.  Often in an assessment, there are lenses (glasses) that can be put on a person that change their perception of physical space, dramatically improving their balance and symptoms immediately.  It is also possible to mimic some of these problems in someone who has normal visual function by reversing the process.

Headaches/Migraines:

Vision dysfunction after an injury can result in a litany of headaches and migraines often associated with computers, reading, busy visual environments, and other visual stimuli.  Using a high contrast black and white grid (Visual Aliasing test)and gauging the person?s reaction to it, is a great way to determine whether the visual system is a playing a role in these symptoms. Inefficiencies with how the eyes coordinate will produce situations that make it difficult for a person to sustain attention, which creates a confounding variable for a lot of testing.

Other Areas:

PTVS can also cause difficulties with tracking moving objects and make stationary objects appear to move. It can create general fogginess, difficulty concentrating on tasks such as conversation (as the brain is using most of its resources on vision), light sensitivity, and even sensitivity to sound.  It is as though most of the brain?s processing power is caught up in trying to make sense of the visual information, so there is less to allocate to other areas of function.

How is Post Trauma Vision Syndrome treated?

Similar to vestibular problems after a concussion, PTVS requires rehabilitative efforts centred around re-establishing the areas of affected visual function. Particular types of prescription lenses can improve the efficiency of visual function and how an individual processes depth and space.  Treatment time can range from weeks to more than a year, and the neurological changes are permanent.  Treatment for PTVS is commonly coordinated with other professionals.Most eye examinations concentrate on acuity and the physical health of the eye.  It is important that you ask your eye care professional if they can test for Post Trauma Vision Syndrome and the specific areas of visual function commonly affected.

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Opto-Mization Optometry & Vision Therapy
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Our Nanaimo Practice
Opto-Mization Optometry & Vision Therapy
205-1825 Bowen Rd
Nanaimo, BC V9S 1H1
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  • What is Neuro-Optometry?

    Neuro-Optometry focuses on the intricate connection between your visual system and the brain, extending beyond traditional eye care to assess functional vision. This branch of optometry examines how your eyes track, move, coordinate, and how your brain processes depth, motion, and balance. Disruptions in these functions can lead to a range of issues including headaches, migraines, dizziness, balance challenges, post-concussion symptoms, reading difficulties, and attention deficits (ADHD). By exploring these functional areas, we also identify opportunities to enhance performance in activities such as sports, reading speed, and cognitive processes.

  • What is Vision Therapy?

    At Opto-Mization, vision therapy is a specialized, personalized program aimed at improving visual skills and abilities. It goes beyond traditional vision therapy to help improve how the eyes and brain work together, addressing visual-motor and perceptual-cognitive challenges to enhance overall visual function. It’s more than just exercises; it’s a pathway to better vision and improved daily life.

  • Do you Provide Regular Eye Exams and General Optometric Services?

    Yes, alongside vision therapy and neuro-optometry, we offer comprehensive eye exams and general optometry services. Our experienced optometrists perform thorough eye exams to evaluate overall eye health, identify any eye conditions or diseases, and prescribe corrective lenses when beneficial.

  • Who is the Ideal Candidate for Vision Therapy and Neuro-Optometry?

    Vision therapy and neuro-optometric rehabilitation can help individuals of all ages. Whether you’re struggling with visual processing issues, binocular vision disorders, amblyopia (lazy eye), strabismus (eye misalignment), or have sustained a brain injury, our services might be beneficial for you. Contact us to discuss if our tailored approach can meet your specific needs and goals.

  • Do I Need a Referral to See an Optometrist at Opto-Mization?

    No, you do not need a referral for an eye exam at Opto-Mization. We welcome anyone who suspects they might benefit from our services, whether you’re experiencing symptoms of visual discomfort or just want to ensure optimal visual performance. Feel free to reach out and schedule your appointment directly with us to take the first step toward understanding and improving your visual function.

  • Do You Direct Bill Insurance?

    Yes, we offer direct billing for a variety of insurance plans to make the process as seamless and hassle-free as possible for our patients. Our knowledgeable staff is well-versed in working with insurance providers, ensuring that you can maximize your benefits while minimizing out-of-pocket expenses for our services, including vision therapy and eye exams.