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Author (up) Lin, J.B.; Gerratt, B.W.; Bassi, C.J.; Apte, R.S. url  doi
  Title Short-Wavelength Light-Blocking Eyeglasses Attenuate Symptoms of Eye Fatigue Type Journal Article
  Year 2017 Publication Investigative Ophthalmology & Visual Science Abbreviated Journal Invest Ophthalmol Vis Sci  
  Volume 58 Issue 1 Pages 442-447  
  Keywords Human Health  
  Abstract Purpose: The purpose of this study was to determine whether subjects who wear short wavelength-blocking eyeglasses during computer tasks exhibit less visual fatigue and report fewer symptoms of visual discomfort than subjects wearing eyeglasses with clear lenses. Methods: A total of 36 healthy subjects (20 male; 16 female) was randomized to wearing no-block, low-blocking, or high-blocking eyeglasses while performing a 2-hour computer task. A masked grader measured critical flicker fusion frequency (CFF) as a metric of eye fatigue and evaluated symptoms of eye strain with a 15-item questionnaire before and after computer use. Results: We found that the change in CFF after the computer task was significantly more positive (i.e., less eye fatigue) in the high-block versus the no-block (P = 0.027) and low-block (P = 0.008) groups. Moreover, random assignment to the high-block group but not to the low-block group predicted a more positive change in CFF (i.e., less eye fatigue) following the computer task (adjusted beta = 2.310; P = 0.002). Additionally, subjects wearing high-blocking eyeglasses reported significantly less feeling pain around/inside the eye (P = 0.0063), less feeling that the eyes were heavy (P = 0.0189), and less feeling that the eyes were itchy (P = 0.0043) following the computer task, when compared to subjects not wearing high-blocking lenses. Conclusions: Our results support the hypothesis that short-wavelength light-blocking eyeglasses may reduce eye strain associated with computer use based on a physiologic correlate of eye fatigue and on subjects' reporting of symptoms typically associated with eye strain.  
  Address Department of Ophthalmology & Visual Sciences, Washington University School of Medicine, St. Louis, Missouri, United States 4Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, United States 5Department of Medicine, Washington University School of Medicine, St. Louis, Missouri, United States  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0146-0404 ISBN Medium  
  Area Expedition Conference  
  Notes PMID:28118668 Approved no  
  Call Number LoNNe @ kyba @ Serial 1629  
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