Post-Concussion Vision Symptoms: What Patients Notice

July 16, 2026

One of the most overlooked consequences of a concussion or other traumatic brain injury is disruption to the visual system. A patient can have a normal neurological exam, a clear CT scan, and 20/20 eyesight, and still struggle with reading, screens, driving, or crowded spaces for weeks or months afterward. This is where neuro-optometry comes in: evaluating and treating the visual symptoms that standard imaging and general eye exams often miss.


What Patients Commonly Notice After a Concussion


Blurred or Double Vision


The brain's ability to align both eyes precisely can be disrupted after head trauma, leading to intermittent blur or true double vision, especially with sustained reading or screen use.


Light Sensitivity (Photophobia)


Bright environments, fluorescent lighting, and screen glare can become newly uncomfortable or even painful.


Difficulty Reading or Concentrating on Near Work


Words may appear to swim or shift, lines may be lost easily, and reading endurance often drops sharply compared to before the injury.


Dizziness or Nausea With Visual Motion


Scrolling on a phone, walking through a busy store, or riding in a car as a passenger can trigger dizziness, a symptom tied to how the visual and vestibular (balance) systems process motion together.


Headaches Linked to Visual Tasks


Headaches that reliably worsen with reading, computer work, or driving point toward a visual, rather than purely migrainous, component.


Trouble Judging Distance or Balance


Because the eyes feed constant information to the balance system, disrupted visual processing can contribute to unsteadiness, especially in crowded or visually busy environments.


Dry Eye Symptoms


Environmental and behavioral factors make dry eyes incredibly common. Add a concussion to the mix, and the normal autonomic nervous system function of stimulating tear production can be disrupted. Symptoms can include inconsistent clarity, tired eyes, and a dry, gritty sensation.


Why This Happens


A large portion of the brain, more than is commonly realized, is devoted to processing visual information and coordinating eye movement, focus, and alignment. The neural pathways controlling eye teaming, tracking, and visual motion processing are vulnerable to the shearing forces and metabolic disruption caused by concussion, even when the eyes themselves are perfectly healthy.


What a Neuro-Optometric Evaluation Involves


A comprehensive post-concussion vision evaluation goes well beyond a standard eye exam. It typically assesses:


  • Eye teaming and convergence at near and far distances
  • Smooth pursuit and saccadic eye tracking accuracy
  • Accommodative (focusing) flexibility and stamina
  • Visual field integrity and peripheral awareness
  • Sensitivity to visual motion and busy visual environments
  • Symptom correlation with specific visual tasks


How Post-Concussion Vision Symptoms Are Treated


Treatment is individualized based on evaluation findings and may include neuro-optometric vision rehabilitation (structured, progressive activities to retrain eye teaming and tracking), prism lenses to reduce visual strain, tinted or specialty lenses for light sensitivity, and activity pacing guidance. Because concussion recovery is rarely a single-provider process, we regularly coordinate care with neurologists, physical therapists, and vestibular specialists involved in a patient's recovery.


When to Seek an Evaluation


If visual symptoms persist beyond one to two weeks after a head injury, or if they are limiting daily activities like reading, working, or driving, it's reasonable to seek a dedicated visual evaluation rather than assuming symptoms will resolve on their own. Early identification generally supports a smoother recovery.


Serving San Rafael and San Francisco


Rising Star Optometry provides neuro-optometric evaluation and post-concussion syndrome treatment for patients throughout San Rafael and San Francisco, CA, working alongside each patient's broader medical team to address the visual piece of a complex recovery.


Still Dealing With Visual Symptoms After a Head Injury?


If you or a loved one is still experiencing light sensitivity, dizziness, reading difficulty, or visual fatigue weeks after a concussion or head injury, you don't have to manage it alone or assume it will simply fade with time. Rising Star Optometry provides dedicated neuro-optometric evaluations for post-concussion syndrome and traumatic brain injury throughout San Rafael and San Francisco, CA, working directly alongside your neurologist, physical therapist, or primary care provider. A thorough evaluation can identify exactly what's contributing to your symptoms and guide a personalized treatment plan, whether that means vision rehabilitation, prism lenses, or coordinated multi-provider care.

Contact Rising Star Optometry today to schedule a neuro-optometric evaluation in San Rafael or San Francisco, CA.


Frequently Asked Questions


Can vision problems appear after a mild concussion, not just a severe one?


Yes. The severity of a concussion does not reliably predict the severity or duration of visual symptoms. Even a mild head injury can produce noticeable visual disruption.


Will a routine eye exam catch these problems?


Not usually. A standard exam checks visual acuity and eye health, but it does not typically assess eye teaming, near focusing, tracking, or visual motion sensitivity in the detail needed to identify post-concussion visual dysfunction.


How soon after a head injury should I be evaluated?


If visual symptoms are present and haven't resolved within one to two weeks, scheduling an evaluation is reasonable. If you experience sudden, severe symptoms such as new double vision, vision loss, or a severe headache, seek emergency medical care immediately.


Is post-concussion vision therapy covered by insurance?


Coverage varies by plan and diagnosis. We are not networked with insurers because of their inconsistency in covering for concussion services. However, we will provide you with a superbill that you can submit for potential reimbursement.

Visual Processing Assessment: What It Tests, and What It Doesn't

By Michael Kuzma • July 16, 2026
"Visual processing evaluation" is one of the more commonly misunderstood terms in eye care. Parents and adults alike are sometimes referred for one without a clear sense of what it will actually reveal, or what it can't. Understanding the scope of this testing helps set realistic expectations and ensures patients end up with the right diagnosis and the right next step. What are Visual Processing Assessment Tests • Visual-motor integration: how well what's seen translates into coordinated hand movement, such as copying shapes or handwriting • Visual memory: the ability to recall visual information after it's no longer in view • Visual discrimination: distinguishing between similar shapes, letters, or symbols • Visual-spatial skills: understanding position, direction, and spatial relationships • Eye teaming and tracking: how well the eyes work together and move accurately, which is assessed alongside processing skills since the two are closely linked What a Visual Processing Assessment Does Not Test This is where clarity matters most: • It is not an IQ test and does not measure general intelligence. • It does not diagnose ADHD, dyslexia, or autism. Those require psychoeducational testing or a medical evaluation by the appropriate specialist, though results can be shared to inform that broader picture. • It does not replace a comprehensive eye health and refractive exam. A dilated eye health check and prescription check are separate, equally important parts of care. • It does not diagnose visual snow syndrome, a distinct neurological condition (described below) that requires a different evaluation approach. A Note on Visual Snow Syndrome Visual snow syndrome is a persistent visual disturbance, often described as static or "TV snow" across the entire visual field, along with symptoms like afterimages, light sensitivity, and difficulty with night vision. It is understood to be primarily neurological rather than a standard eye health or processing issue. Our office can perform an initial evaluation to rule out ocular causes and coordinate referral to neuro-optometry or neurology specialists in San Francisco for a full diagnostic workup when visual snow syndrome is suspected. Ruling Out Simpler Explanations First Symptoms like blurry near vision, eye strain, and difficulty concentrating on visual tasks are sometimes attributed to a processing disorder when the actual cause is something more straightforward, such as uncorrected refractive error or dry eye disease affecting the ocular surface. Because dry eye can cause fluctuating, strain-like visual symptoms, we evaluate and treat the ocular surface as part of a thorough workup before attributing symptoms to a more complex processing issue. Amblyopia (Lazy Eye): A Related but Distinct Diagnosis Amblyopia occurs when the brain favors one eye over the other, often due to a difference in refractive error or eye alignment during early visual development, resulting in reduced vision in the weaker eye. It's frequently discussed alongside visual processing concerns because both can affect reading and visual-motor tasks, but amblyopia is a specific, diagnosable condition with its own treatment path, which may include patching, atropine penalization of the stronger eye, and vision therapy to improve eye teaming. A common misconception is that amblyopia can only be treated in early childhood. Current research on neuroplasticity shows that meaningful improvement is possible in older children, teens, and even adults with appropriately structured therapy, though outcomes and timelines vary by age and case. When to Consider an Evaluation • Difficulty copying from a board or book • Messy or slow handwriting despite adequate fine motor development elsewhere • Trouble with puzzles, mazes, or spatial tasks • Reversing letters or numbers beyond the typical early age range • A known or suspected lazy eye or eye turn Our Approach in San Francisco Rising Star Optometry performs comprehensive visual processing and functional vision evaluations for children and adults, always alongside a full eye health and refractive assessment, and we're clear and direct with families about what our findings do and do not explain, referring out for psychoeducational, neurological, or other specialist evaluation whenever appropriate.

Sports Vision Training: Who Benefits and What We Measure

By Michael Kuzma • July 16, 2026
Athletic performance depends on far more than 20/20 eyesight. The ability to track a fast-moving ball, react a fraction of a second faster, judge depth accurately, and maintain visual focus while fatigued are all trainable visual and cognitive skills. Sports vision training applies principles of optometry and cognitive training to help athletes sharpen exactly these abilities. What Sports Vision Training Targets • Dynamic visual acuity: seeing clearly while objects or the athlete's head are in motion • Eye tracking and pursuit accuracy: following a fast-moving ball or opponent smoothly • Peripheral awareness: picking up movement and players outside the direct line of sight • Depth perception and spatial judgment: accurately gauging distance and timing • Visual reaction time: how quickly visual information is processed into a motor response • Visual concentration under fatigue: maintaining visual performance late in a game or match Who Tends to Benefit Most • Competitive athletes in fast-paced, reactive sports such as baseball, basketball, tennis, soccer, and hockey • Young athletes developing foundational visual-motor coordination • Patients recovering from a concussion who need to safely rebuild visual timing and reaction speed before returning to play • Adults in visually demanding occupations that benefit from similar skills, such as driving-intensive jobs Who Sports Vision Training Is Not For It's worth being direct: sports vision training is a performance supplement, not a substitute for uncorrected vision problems, sport-specific coaching, physical conditioning, or fundamental skill development. An athlete with significant uncorrected refractive error should address that first with standard corrective lenses. Someone looking for a shortcut around practice and coaching won't find one here; the training works best as an addition to, not a replacement for, traditional athletic development. What We Actually Measure Assessment typically begins with baseline testing across several domains before a training program is built: • Comprehensive eye exam that checks for the need for contacts or glasses, eye alignment, and basic motor skills of the eyes (tracking, convergence, focusing). Eye health is also assessed. • Near-far quickness: how rapidly the eyes shift focus between close and distant targets • Contrast sensitivity: the ability to distinguish objects from their background in varying light • Visual reaction and hand-eye coordination timing • Peripheral awareness under divided attention We use the Senaptec Sensory Station to test up to 8 sports-related visual processing skills. These baseline scores let us track objective improvement over the course of a training program, rather than relying on subjective impressions of progress. How This Connects to Cognitive Training Many of the same skills used in sports, quick visual processing, sustained attention, and rapid decision-making, overlap with the cognitive training approaches we use for patients recovering from concussion or working through visual processing challenges. The underlying principle is the same: measurable visual and cognitive skills can be improved with targeted, structured practice. Getting Started Rising Star Optometry offers sports vision assessment and training for athletes throughout San Francisco and San Rafael, beginning with a baseline evaluation to determine which specific skills would benefit most from targeted training. Find Out What Your Visual Game Is Missing Whether you're a competitive athlete chasing an edge or a parent wondering if sports vision training could help your young player, the first step is a baseline evaluation. Rising Star Optometry offers sports vision assessment and training for athletes throughout San Francisco and San Rafael, CA, measuring the specific visual and cognitive skills, tracking, reaction time, peripheral awareness, and more that matter most for performance, then building a plan around your sport, position, and goals. Schedule your sports vision evaluation with Rising Star Optometry today and start training the skills that actually move the needle on game day. Frequently Asked Questions

Myopia Control Options Compared: Ortho-K, Atropine, Multifocal Contacts, and Spectacle Lenses

By Michael Kuzma • July 16, 2026
Myopia (nearsightedness) in children is progressing faster and earlier than it did a generation ago, and researchers now understand that higher levels of myopia carry a lifelong increased risk of retinal detachment, glaucoma, and myopia-related maculopathy later in life. This has shifted the conversation among eye doctors from simply correcting blurry vision to actively slowing the progression of myopia itself. Four main approaches currently have meaningful clinical support. Why Myopia Control Matters Every diopter of myopia a child develops adds a measurable long-term eye health risk. Slowing progression during the growing years, generally most active between ages 6 and the early twenties has real, lasting benefits beyond simply needing a weaker glasses prescription. The Four Main Options 1. Orthokeratology (Ortho-K) Rigid, gas-permeable contact lenses worn overnight temporarily reshape the cornea, correcting vision for the following day without daytime lens wear. Ortho-K has strong evidence for slowing myopia progression and is often appealing to active kids and teens who don't want to wear glasses or lenses during the day. 2. Soft Multifocal (Dual-Focus) Contact Lenses Specially designed daily or monthly soft lenses correct central vision while altering peripheral focus in a way shown to slow myopia progression. These offer daytime convenience for children mature enough to handle contact lens care. 3. Myopia Control Spectacle Lenses Newer lens designs incorporate specialized optical zones that reduce the peripheral growth signal linked to myopia progression, all within a standard pair of glasses. This is often the most comfortable entry point for younger children or families new to myopia management. 4. Low-Dose Atropine Eye Drops (not used by Rising Star Optometry) A nightly eye drop, used at a low concentration specifically studied for myopia control, appears to slow axial eye growth. It's a good option for children who aren't good candidates for contact lens wear, though it doesn't correct vision by itself and is often paired with glasses. At Rising Star Optometry, we aren’t enthusiastic about our patients using medication every day for their young lives. We also have reservations due to the potential impacts to the focusing system and dilation of the pupils. Occasionally, we may refer for treatment of low-dose atropine in addition to one of the optical interventions. Comparing the Options