Effect of corneal curvature on the difference of intraocular lens in short eye axis

中国实用眼科杂志 Pub Date : 2017-04-10 DOI:10.3760/CMA.J.ISSN.1006-4443.2017.04.005

Kangning Li, Zhiling Song, Chaojuan Ju

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Abstract

Objective To analyze the relationship between the average corneal curvature and the difference of intraocular lens (IOL)on both sides of the short eye axis. Methods Prospective study of corneal curvature on randomly collected 500 corneas of normal adult cataract patients. With the same corneal curvature, 177 cases of corneal curvature were obtained; the average of 177 cases of corneal curvature was obtained, the range of the average corneal curvature was 40.125-48.375D. In the range of average corneal curvature, according to the calculated critical axial length (21.97-22.02mm), the difference of IOL was obtained. The correlation on intraocular lens of difference and average corneal curvature were analyzed. Results There was a negative correlation between the difference of intraocular lens and the average corneal curvature in critical axial of short axis r=-0.968, P=0.000. Conclusions In normal adult cataract patients with normal corneal, the difference of intraocular lens number gradually becomes smaller with the increase of average corneal curvature. Key words: Corneal curvature; Short axis; Intraocular lens; Cataract

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角膜曲率对短眼轴型人工晶状体差异的影响

目的分析短眼轴两侧平均角膜曲率与人工晶状体(IOL)差异的关系。方法随机抽取500例正常成人白内障患者的角膜曲率进行前瞻性研究。在角膜曲率相同的情况下，获得角膜曲率177例;平均177例角膜曲率，平均角膜曲率范围为40.125 ~ 48.375 d。在平均角膜曲率范围内，根据计算出的临界眼轴长度(21.97 ~ 22.02mm)，得出人工晶状体的差值。分析人工晶状体差值与平均角膜曲率的相关性。结果人工晶状体差值与短轴临界轴平均角膜曲率呈负相关(r=-0.968, P=0.000)。结论角膜正常的成人白内障患者，随着角膜平均曲率的增大，人工晶状体数的差异逐渐减小。关键词:角膜曲率;短轴;人工晶状体;白内障

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中国实用眼科杂志

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期刊介绍： China Practical Ophthalmology was founded in May 1983. It is supervised by the National Health Commission of the People's Republic of China, sponsored by the Chinese Medical Association and China Medical University, and publicly distributed at home and abroad. It is a national-level excellent core academic journal of comprehensive ophthalmology and a series of journals of the Chinese Medical Association. China Practical Ophthalmology aims to guide and improve the theoretical level and actual clinical diagnosis and treatment ability of frontline ophthalmologists in my country. It is characterized by close integration with clinical practice, and timely publishes academic articles and scientific research results with high practical value to clinicians, so that readers can understand and use them, improve the theoretical level and diagnosis and treatment ability of ophthalmologists, help and support their innovative development, and is deeply welcomed and loved by ophthalmologists and readers.