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Updated: Aug 4, 2025
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Vision Training Methods for Sports Concussion Mitigation and Management
Published on: May 5, 2015
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Exercise-Induced Vision Dysfunction Early After Sport-Related Concussion Is Associated With Persistent Postconcussive
Brian T Vernau1, Mohammad N Haider2, Alexander Fleming2
1Minds Matter Concussion Program, Division of Orthopedics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.
Summary
Exercise-induced vision dysfunction in adolescents after concussion significantly increases the risk of persistent post-concussive symptoms (PPCS). This finding highlights the importance of vision assessment in concussion recovery.
Area of Science:
- Sports Medicine
- Neurology
- Ophthalmology
Background:
- Sport-related concussions are common in adolescents.
- Persistent post-concussive symptoms (PPCS) can prolong recovery.
- Vision dysfunction is a potential consequence of concussion.
Purpose of the Study:
- To investigate the association between exercise-induced vision dysfunction and the risk of developing PPCS in adolescents following a sport-related concussion.
- To determine if visual performance deficits after exercise predict a longer recovery period.
Main Methods:
- A secondary analysis of a multi-center randomized clinical trial was performed.
- Adolescents with sport-related concussion underwent the King-Devick (KD) test before and after the Buffalo Concussion Treadmill Test.
- Exercise (aerobic or placebo stretching) was used as a provocative maneuver.
Main Results:
- Adolescents exhibiting exercise-induced vision dysfunction showed a significantly higher incidence of PPCS (71% vs. 34%, P < 0.001).
- Exercise-induced vision dysfunction was associated with a 3.13-fold increased relative risk of developing PPCS.
Conclusions:
- Adolescents with exercise-induced vision dysfunction following a sport-related concussion face a substantially elevated risk of persistent post-concussive symptoms.
- Vision assessment, particularly after exertion, may be a critical factor in predicting concussion recovery timelines.
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