| The Changes of Corneal and Ocular High-Order Aberrations before and after Playing Computer Games. |
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Min Seo Kim, Young Hoon Hwang, Jong Suk Song |
1School of Life Science, Handong Global University, Pohang, Korea.
2Department of Ophthalmology, Kim's Eye Hospital, College of Medicine, Konyang University, Seoul, Korea.
3Department of Ophthalmology, Korea University College of Medicine, Seoul, Korea. crisim@korea.ac.kr |
| 컴퓨터 게임 전후 각막 및 안구의 고위수차 변화 |
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김민서1⋅황영훈2⋅송종석3 |
School of Life Science, Handong Global University1, Pohang, Korea
Department of Ophthalmology, Kim’s Eye Hospital, College of Medicine, Konyang University2, Seoul, Korea
Department of Ophthalmology, Korea University College of Medicine3, Seoul, Korea |
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| Abstract |
PURPOSE
To evaluate changes in corneal and ocular high-order aberration, ocular fatigue, and tear break-up time (TBUT) before and after playing computer games and the correlations among the variables. METHODS: Thirty-nine normal healthy subjects played computer games for 1 hour. Ocular fatigue was evaluated with a questionnaire, TBUT was measured with slit-lamp biomicroscopy, and high-order aberrations were measured with a KR-1W aberrometer (Topcon Medical System, Inc., Tokyo, Japan) in each subject before and after playing computer games. The right eye was used for statistical analyses. RESULTS: Subjective ocular fatigue (expressed as the interview score) increased from 4.23 +/- 5.35 to 12.05 +/- 8.68 after playing games (p < 0.001) and TBUT decreased from 8.03 +/- 6.43 sec to 4.90 +/- 3.31 sec (p < 0.001). Ocular high-order aberrations in the 4 mm and 6 mm zones were not significantly changed before and after playing games (p = 0.150, p = 0.202, respectively). However, corneal high-order aberrations in the 4 mm and 6 mm zones were significantly increased after playing computer games (p = 0.002, p = 0.002, respectively). Changes in TBUT, interview score, and corneal high-order aberration were not correlated with each other. CONCLUSIONS: Playing computer games increased corneal high-order aberrations as well as subjective ocular fatigue and TBUT. |
| Key Words:
Computer games;Corneal aberration;Dry eye;High-order aberration |
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