視力
视觉的灵敏度及清晰度
(重定向自视力)
視力(visual acuity,VA)是指视觉的灵敏度及清晰度,主要取决于眼睛视网膜中心对视觉图像的敏锐程度和大脑中视皮层对图像的解析能力[1]。低视力(low visual acuity[2][3]),按世界卫生组织的标准,是指患者较好眼的最佳矫正视力 <0.3 但 ≥0.05 时的现象[4][5]。
参见
编辑参考文献
编辑- ^ Cline D; Hofstetter HW; Griffin JR. Dictionary of Visual Science. 4th ed. Butterworth-Heinemann, Boston 1997. ISBN 0-7506-9895-0
- ^ Moussa G, Bassilious K, Mathews N. A novel excel sheet conversion tool from Snellen fraction to LogMAR including 'counting fingers', 'hand movement', 'light perception' and 'no light perception' and focused review of literature of low visual acuity reference values. Acta Ophthalmol. 2021;99(6):e963-e965. doi:10.1111/aos.14659
- ^ Becker R, Teichler G, Gräf M. Reproducibility of visual acuity assessment in normal and low visual acuity. Strabismus. 2007;15(1):3-6. doi:10.1080/09273970601172435
- ^ Thylefors B, Négrel AD, Pararajasegaram R, Dadzie KY. Global data on blindness. Bull World Health Organ. 1995;73(1):115-121.
- ^ 低视力. 术语在线. 全国科学技术名词审定委员会. (简体中文)
- ^ Snellen Chart - [史奈侖視力檢查表]. [2016-07-14]. (原始内容存档于2021-01-14).
- ^ 跟別的動物比視力 — 職業科學家的業餘科學 (中文) Amateur science by a professional scientist — Medium. [2016-07-14]. (原始内容存档于2021-01-14).
扩展阅读
编辑- Duane's Clinical Ophthalmology, V.1 C.5, V.1 C.33, V.2 C.2, V.2 C.4, V.5 C.49, V.5 C.51, V.8 C.17, Lippincott Williams & Wilkins, 2004.
- (俄文) Головин С.С. Сивцев Д.А. Таблица для исследования остроты зрения. 3 изд. М., 1927
- GB 11533—1989, 中国大陆的视力表标准
外部链接
编辑- How Visual Acuity is Measured (页面存档备份,存于互联网档案馆)
- Visual Acuity of the Human Eye
- Golovin-Sivtsev Table for testing visual acuity (页面存档备份,存于互联网档案馆) - used in the USSR and post-Soviet states in different formats (as pdf or cdr files)
- Visual Acuity Chapter from the Webvision reference, University of Utah