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Updated: Jul 13, 2026
10:31
A Multi-Modal Approach to Assessing Recovery in Youth Athletes Following Concussion
Published on: September 25, 2014
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Case Series: Periodic Accommodative Fluctuations after Concussion
Kevin E Houston, Catherine E McDaniel1, Lynn Greenspan2
1The Ohio State University College of Optometry, Columbus, Ohio.
Summary
This study identifies a new accommodative disorder linked to concussion, causing fluctuating myopia. Prompt evaluation of refractive stability is crucial for patients experiencing blurry vision post-concussion.
Area of Science:
- Ophthalmology
- Neuroscience
- Vision Science
Background:
- Concussion can lead to various visual disturbances.
- Accommodative disorders, affecting the eye's focusing ability, are increasingly recognized post-concussion.
Observation:
- Two cases presented with accommodative dysfunction following concussion (sports-related and blast injury).
- Measurements revealed significant, periodic fluctuations in refractive error (myopic shifts) without typical signs of near reflex spasm.
- Symptoms included headaches and variable blurred vision, impacting visual tasks.
Findings:
- Case 1 showed rapid refractive fluctuations (-0.25 to -1.75 D) resolving with atropine.
- Case 2 exhibited slower fluctuations (+0.50 to -2.00 D) unresponsive to vision therapy.
- This distinct pattern of fluctuating myopia suggests a novel post-concussive visual impairment.
Implications:
- Highlights the need for assessing accommodative stability in concussion patients with blurry vision.
- Suggests a potential new diagnostic category for visual dysfunction after head trauma.
- Informs potential therapeutic strategies for this specific accommodative disorder.
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