角膜后表面散光的评估方法及临床特征的研究进展

doi:10.3760/cma.j.cn115909-20200623-00268

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Abstract Accurate assessment of corneal astigmatism has great clinical implications in procedures such as refractive and cataract surgery. The influence of posterior corneal astigmatism (PCA) on the overall corneal astigmatism assessment was underestimated due to the lack of theoretical understanding and the limitations of examination equipment. In recent years, various devices based on different principles have realized the direct or indirect collection of corneal posterior surface information. Their wide application in clinical and scienti?c research has made the distribution characteristics and rules of PCA gradually clear. This article reviews the assessment methods and clinical characteristics of PCA, aiming to improve the understanding of these factors and bring attention to them in clinical practice.

Key words： cornea astigmatism posterior corneal astigmatism

Received: 23 June 2020

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Fund:Tianjin Health Science and Technology Project (ZC20207)

Corresponding Authors: Fang Tian, Tianjin Key Laboratory of Retinal Functions and Disease, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin 300384, China (Email: tianfang1216@126.com)

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	Yuanfeng Jiang
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Cite this article:

Yuanfeng Jiang,Luning Qin,Hong Zhang等. Assessment and Clinical Characteristics of Posterior Corneal Astigmatism[J]. Chinese Journal of Optometry Ophthalmology and Visual science, 2021, 23(11): 875-880.

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https://www.cjoovs.com/EN/10.3760/cma.j.cn115909-20200623-00268 OR https://www.cjoovs.com/EN/Y2021/V23/I11/875

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