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Year : 2020  |  Volume : 15  |  Issue : 3  |  Page : 479-483

The onset and recovery timeline of visual photosensitivity following mild traumatic brain injury with special focus on habitual digital device screens users

1 Department of Ophthalmology, Kalinga Institute of Medical Sciences, Bhubaneswar, Odisha, India
2 Department of Neurosurgery, Kalinga Institute of Medical Sciences, Bhubaneswar, Odisha, India

Correspondence Address:
Dr. Narendra Kumar Das
Plot No 434/5988, Gautam Nagar, Lewis Road, Bhubaneswar - 751 002, Odisha
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajns.AJNS_187_19

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Primary Objective: Visual photosensitivity following mild traumatic brain injury (mTBI) can cause mild discomfort to significant pain and can affect a person's ability to lead a regular life and perform normal activities. The purpose of the present study is twofold: (1) To determine the recovery pattern of visual photosensitivity following mTBI and (2) to find out whether the onset of visual photosensitivity and its recovery pattern is any different among habitual screen users (HSU) (chronic exposure to digital device screens). Materials and Methods: This study was a hospital-based prospective, analytical, observational study. The study period was from July 2017 to March 2019. All the mTBI patients with visual photosensitivity who fulfilled the inclusion Criteria were followed up for 1 year to capture their recovery profile. Results: In 60% of the patients, the time of appearance of visual photosensitivity was at around 3 month's post-mTBI. Nearly 66.6% of patients suffering from visual photosensitivity following mTBI recovered within 3 months following the onset of their symptoms. The symptoms of visual photosensitivity appeared earlier among the HSU as compared to nonscreen users (P = 0.0039). The recovery from the symptoms of visual photosensitivity following mTBI is delayed in HSU (P = 0.0028). The patients in whom the symptoms of visual photosensitivity persisted beyond a year were predominantly HSU (P = 0.0062). Conclusions: The present study has given a new insight on the timeline of recovery for the patients with visual photosensitivity following mTBI. To the best of our knowledge, this is the only study which has shown how chronic exposure to blue light from digital device screens can affect the recovery of visual symptoms such as visual photosensitivity following mTBI.

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