The Objective Methods to Evaluate Ocular Fatigue Associated With Computer Work

Suh, Young Woo; Kim, Kyun Hyung; Kang, Su Yeon; Kim, Seoung Woo; Oh, Jin Seok; Kim, Hyo Myung; Song, Jong Suk

doi:10.3341/jkos.2010.51.10.1327

Cited by 23 publications

(16 citation statements)

References 15 publications

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“…In addition, both studies only using computer while current study compared between laptop and VR. On the other hand, the procedure conducted in this study [11] almost like current study since blink interval was recorded before and right after visual task on computer which gave result of decreased maximal blinking interval, ocular protection index and tear break-up time. However, the task was conducted for an hour using computer only, compared to current study which was 30 minutes on VR and laptop each.…”

Section: Mohd Zulfaezal Che Azemin Et Al/ Journal Of Engineering Anmentioning

confidence: 87%

Short Term Effect of Virtual Reality Headset on Blink Rate and Inter-Blink Interval

Azemin¹

2020

JESR

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Virtual reality (VR) headsets are becoming remarkably well-known nowadays, especially in gaming industry. Their ability to immerse users into virtual world makes them captivating. However, there is limited research about the impacts of this technology on our eyes and vision. This study investigated if there is any effect on blink rate (BR) and inter-blink interval (IBI) after 30 minutes of watching 3-dimensional (3D) movie on VR. Besides, this study compares between watching 3D movie on VR headset and 2D movie on laptop. Blinks were recorded over 1 minutes for 32 participants volunteered in this study before and after 30 minutes of watching 3D movie on VR headset and 2D movie on laptop. The result of BR and IBI between pre-and post-watching 3D movie on VR was not significant (p= >0.05). The result between watching movie on laptop and VR also not significant (p= >0.05). Watching 3D movie on VR for 30 minutes resulted in no effects on blink rate and inter-blink interval of the users.

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Section: Mohd Zulfaezal Che Azemin Et Al/ Journal Of Engineering Anmentioning

confidence: 87%

Short Term Effect of Virtual Reality Headset on Blink Rate and Inter-Blink Interval

Azemin¹

2020

JESR

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“…In most studies, ocular fatigue is evaluated only subjectively using a symptom questionnaire, and an objective measurement of ocular fatigue has not been established. In our previous study, 12 we measured ocular fatigue after 1 hour of computer work both subjectively and objectively, which revealed that TBUT, maximal blinking interval, conjunctival hyperemia, and ocular surface temperature correlated with ocular fatigue. Therefore, we used identical objective and subjective methodology in this study.…”

Section: Discussionmentioning

confidence: 99%

Effect of Ambient Light Exposure on Ocular Fatigue during Sleep

Suh

Na²,

Ahn

et al. 2018

J Korean Med Sci

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BackgroundTo investigate the influence of nocturnal ambient light on visual function and ocular fatigue.MethodsSixty healthy subjects (30 men and 30 women) aged 19 through 29 years with no history of ocular disease were recruited. All subjects spent 3 consecutive nights in the sleep laboratory. During the first and second nights, the subjects were not exposed to light during sleep, but during the third night, they were exposed to ambient light, measuring 5 or 10 lux at the eye level, which was randomly allocated with 30 subjects each. The visual function and ocular fatigue were assessed at 7 a.m. on the 3rd and 4th mornings, using best-corrected visual acuity, refractive error, conjunctival hyperemia, tear break-up time, maximal blinking interval, ocular surface temperature, and subjective symptoms reported on a questionnaire.ResultsThree men and three women subjects failed to complete the study (4 in the 5 lux; 2 from the 10 lux). For the entire 54 subjects, tear break-up time and maximal blinking interval decreased (P = 0.015; 0.010, respectively), and nasal and temporal conjunctival hyperemia increased significantly after sleep under any ambient light (P < 0.001; 0.021, respectively). Eye tiredness and soreness also increased (P = 0.004; 0.024, respectively). After sleep under 5 lux light, only nasal conjunctival hyperemia increased significantly (P = 0.008). After sleep under 10 lux light, nasal and temporal conjunctival hyperemia, eye tiredness, soreness, difficulty in focusing, and ocular discomfort increased significantly (P < 0.05).ConclusionNocturnal ambient light exposure increases ocular fatigue. Avoiding ambient light during sleep could be recommended to prevent ocular fatigue.

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“…Eye fatigue was measured using a questionnaire for evaluating ocular fatigue 2 , 4 ) . This instrument consisted of 12 items scored using a 7-point Likert scale (0=none, 1 or 2=slight, 3 or 4=moderate, 5 or 6=severe), assessing the source of eye fatigue from 12 items: tired eyes, sore/aching eyes, irritated eyes, watery eyes, dry eyes, eyestrain, hot/burning eyes, blurred vision, difficulty focusing, double vision, and visual discomfort 2 ) .…”

Section: Methodsmentioning

confidence: 99%

“…Except during sleep, an immense variety of visual information is perceived by us through eyes both, at work and at home. Most users of visual displays have reported forms of visual discomfort such as tired eyes, dry eyes, eye strain, eye irritation, poor visual acuity, burning sensations, redness, and double vision 1 , 2 , 3 , 4 ) . Nowadays, university students are readily exposed to accelerated environmental eye fatigue as frequent users of computer screens.…”

Section: Introductionmentioning

confidence: 99%

Effects of yogic eye exercises on eye fatigue in undergraduate nursing students

Kim

2016

J Phys Ther Sci

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[Purpose] This study was performed to investigate the effects of yogic eye exercises on eye fatigue in undergraduate nursing students. [Subjects and Methods] The study used a pretest-posttest design with a non-equivalent control group. Forty undergraduate nursing students were selected by convenience sampling, with 20 assigned to an exercise group and 20 assigned to a control group. The yogic eye exercise intervention was performed for 60 minutes, two days a week for 8 weeks. It consisted of 8 steps: palming, blinking, sideways viewing, front and sideways viewing, rotational viewing, up and down viewing, preliminary nose tip gazing, and near and distant viewing. Eye fatigue was measured using a questionnaire for evaluating ocular fatigue. [Results] The exercise-group measurements revealed a significantly decreased eye-fatigue score compared with that of the control group. [Conclusion] These findings indicate that yogic eye exercises could reduce the eye fatigue score in undergraduate nursing students.

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The Objective Methods to Evaluate Ocular Fatigue Associated With Computer Work

Cited by 23 publications

References 15 publications

Short Term Effect of Virtual Reality Headset on Blink Rate and Inter-Blink Interval

Short Term Effect of Virtual Reality Headset on Blink Rate and Inter-Blink Interval

Effect of Ambient Light Exposure on Ocular Fatigue during Sleep

Effects of yogic eye exercises on eye fatigue in undergraduate nursing students

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