Objective Evaluation of Relationship Between Tear Film Stability and Visual Fatigue.

IF 1.8 Q3 OPHTHALMOLOGY

Clinical Optometry Pub Date : 2025-07-01 eCollection Date: 2025-01-01 DOI:10.2147/OPTO.S522320

Maki Watanabe, Masakazu Hirota, Ryusei Takigawa, Kanako Kato, Yuka Ikeda

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引用次数: 0

Abstract

Purpose: To investigate the relationship between tear film stability and visual fatigue using two objective measurements: the non-invasive tear film break-up time (NI-BUT) and the binocular fusion maintenance (BFM) test.

Methods: Eleven young adult volunteers (age [mean ± standard deviation], 20.7 ± 1.4 years) participated in this study. The NI-BUT was determined using the distortion of the mire ring. BFM was assessed by measuring the transmittance of liquid crystals placed in front of the subject's non-dominant eye when binocular fusion was broken, and non-dominant eye was shifted to heterophoric. The volunteers were administered the NI-BUT and BFM before and after a 30-minute visual task.

Results: NI-BUT (pre vs post: 9.12 ± 1.00 s vs 5.69 ± 3.11 s) was significantly shorter in the post-visual task than in the pre-visual task (P = 0.011). BFM (0.95 ± 0.09 vs 0.75 ± 0.16) was significantly lower in the post-visual task than in the pre-visual task (P = 0.012). The change in NI-BUT was significantly and positively correlated with the change in BFM (R² = 0.385, P = 0.042).

Conclusion: These objective findings support the association between tear film stability and visual fatigue.

Abstract Image

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目的探讨泪膜稳定性与视疲劳的关系。

目的：采用无创泪膜破裂时间（NI-BUT）和双眼融合维持（BFM）试验两种客观测量方法，探讨泪膜稳定性与视疲劳的关系。方法：11名青年志愿者（年龄[平均值±标准差]，20.7±1.4岁）参与本研究。利用泥沼环的变形来确定ni - 1。当双眼融合破裂，将非优势眼移至暗隐眼时，通过测量放置在受试者非优势眼前的液晶透过率来评估BFM。志愿者在30分钟的视觉任务前后分别接受了NI-BUT和BFM测试。结果：视觉后任务的NI-BUT（前vs后：9.12±1.00 s vs 5.69±3.11 s）明显短于视觉前任务（P = 0.011）。视觉后任务的BFM（0.95±0.09 vs 0.75±0.16）显著低于视觉前任务（P = 0.012）。NI-BUT变化与BFM变化呈显著正相关（R2 = 0.385, P = 0.042）。结论：这些客观结果支持泪膜稳定性与视疲劳之间的联系。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Clinical Optometry OPHTHALMOLOGY-

CiteScore

3.00

自引率

5.90%

发文量

审稿时长

16 weeks

期刊介绍： Clinical Optometry is an international, peer-reviewed, open access journal focusing on clinical optometry. All aspects of patient care are addressed within the journal as well as the practice of optometry including economic and business analyses. Basic and clinical research papers are published that cover all aspects of optics, refraction and its application to the theory and practice of optometry. Specific topics covered in the journal include: Theoretical and applied optics, Delivery of patient care in optometry practice, Refraction and correction of errors, Screening and preventative aspects of eye disease, Extended clinical roles for optometrists including shared care and provision of medications, Teaching and training optometrists, International aspects of optometry, Business practice, Patient adherence, quality of life, satisfaction, Health economic evaluations.