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Invited Commentary
February 13, 2020

Repetitive Subconcussive Head Impact and Neuro-ophthalmology

Author Affiliations
  • 1Department of Ophthalmology, Blanton Eye Institute, Houston Methodist Hospital, Houston, Texas
  • 2The Houston Methodist Research Institute, Houston Methodist Hospital, Houston, Texas
  • 3Weill Cornell Medicine, New York, New York
  • 4Department of Ophthalmology, University of Texas Medical Branch, Galveston
  • 5University of Texas MD Anderson Cancer Center, Houston
  • 6Texas A and M College of Medicine, Bryan
  • 7Department of Ophthalmology, The University of Iowa Hospitals and Clinics, Iowa City
JAMA Ophthalmol. 2020;138(4):357. doi:10.1001/jamaophthalmol.2019.6140

Subconcussive head impacts (SCHIs), although not as severe as full concussive head impacts, occur much more frequently, and they have emerged as a public health concern in recent years. Research over the past few years has shown that repeated exposures to SCHI can have a cumulative effect and might increase one’s risk of developing permanent neurological impairment in the future. However, the extent of the neuro-ophthalmologic repercussions from these type of injuries have not been studied in much detail previously. In this issue of JAMA Ophthalmology, Nowak and colleagues1 present a study of a standardized soccer ball–heading protocol and SCHIs and test the outcomes on the King-Devick test (KDT) and near point of convergence to quantitate neuro-ophthalmologic function.

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