改良液晶视力表初步应用

doi:10.3760/cma.j.issn.1674-845X.2016.07.010

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Abstract Objective To assess the feasibility of a modified LCD visual acuity chart for practical applications. Methods In this prospective controlled study， 33 members of the medical staff from the ophthalmology department in the Second Hospital of Jilin University， aged 27.4±8.5， 8 males and 25 females， were recruited to check their visual acuity by first using a light box visual acuity chart and then a modified LCD visual acuity chart. All measurements were performed by the same examiner. A Wilcoxon signed-rank test and Bland-Altman plot were used to evaluate the agreement between the two visual charts. Results Visual acuity measured by the light box visual acuity chart and the modified LCD visual acuity chart was 4.2-5.2(4.9) and 4.2-5.1(4.9)， respectively. No significant differences in any measurements were found between the two visual acuity charts (Z=-0.307， P＞0.05). A Bland-Altman plot showed good agreement between the two measurements; the 95% limits of agreement was -0.168-0.162. Conclusion There is high agreement between visual acuity measurements obtained with the two visual charts. This modified LCD visual acuity chart may have some advantages for certain special patients.

Key words： Optometry Vision Agreement

Corresponding Authors: Wu Huang， Email: wh728@sina.com

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	Wang Ruiqing
	Hu Yuxin
	Wu Fan
	Yang Defeng
	Liu Shu
	Wu Huang

Cite this article:

Wang Ruiqing,Hu Yuxin,Wu Fan等. Preliminary application of a modified LCD visual acuity chart[J]. Chinese Journal of Optometry Ophthalmology and Visual science, 2016, 18(7): 430-432.

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https://www.cjoovs.com/EN/10.3760/cma.j.issn.1674-845X.2016.07.010 OR https://www.cjoovs.com/EN/Y2016/V18/I7/430

[1]	Handa T， Shoji N， Kawamorita T， et al. Development of a wide-field， binocular， open-view type electronic pupilometer[J]. J Refract Surg，2012，28(10):672-673. DOI:10.3928/1081597X-20120830-01.
[2]	Seidel D， Gray LS， Heron G. The effect of monocular and binocular viewing on the accommodation response to real targets in emmetropia and myopia[J]. Optom Vis Sci，2005，82(4):279-285.
[3]	Iwata Y， Handa T， Shoji N， et al. Effects of pupil dilation on objective refraction[J]. Acta Ophthalmol，2015-07-06. DOI:10.1111/aos.12792. [Epub ahead of print]
[4]	萨建，刘桂芬. 定量测量结果的一致性评价及Bland-Altman法的应用[J]. 中国卫生统计，2011，28(4):409-411，413. DOI:10.3969/j.issn.1002-3674.2011.04.018.
[5]	柴宝玉. 液晶显示器用偏光片技术及市场分析[J]. 中国新技术新产品，2012，15:9-10. DOI:10.3969/j.issn.1673-9957.2012.15.007.
[6]	李太东. 液晶视力表显示精度与显示屏点距的相关性分析[J]. 中华眼视光学与视觉科学杂志，2013，15(10):597-600. DOI:10. 3760/cma.j.issn.1674-845X.2013.10.005.
[7]	王勤美，王晨晓，叶恬恬．标准对数视力表[M]．北京:中国标准出版社，2011:4-10．