Evaluation of biometry and corneal astigmatism in cataract surgery patients from Central China

BMC Ophthalmology

Research Article

Na Tao¹  Zhong-ming Mei¹  Ji-guo Yu¹  Fang Zhao¹  Jie Zhong¹  Yi Xiang¹ 

[1] Department of Ophthalmology, the Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, No, 26 Shengli Street, 430014, Wuhan, Hubei Province, China;

关键词: Biometry;    Corneal astigmatism;    Cataract;    IOLMaster device;    Central China;   

DOI  :  10.1186/s12886-017-0450-2

 received in 2017-02-04, accepted in 2017-04-22,  发布年份 2017

来源: Springer

【 摘 要 】

BackgroundTo evaluate the distribution of biometric parameters and corneal astigmatism using the IOLMaster device before phacoemulsification in cataract patients in Central China.MethodsConsecutive cataract patients were recruited at the Central Hospital of Wuhan between January 2015 and June 2016. Ocular axial length (AL), keratometry values, anterior chamber depth (ACD) and horizontal corneal diameter (white to white [WTW]) of each cataract-affected eye were measured with the IOLMaster device.ResultsThe study evaluated 3209 eyes of 2821 cataract patients. The mean AL, ACD, and WTW were 24.38 ± 2.47 mm, 3.15 ± 0.48 mm, and 11.63 ± 0.43 mm, respectively. Corneal astigmatism of 0.51–1.00 diopters (D) was the most common range of values (34.96%). A total of 10.56% patients exhibited a corneal astigmatism greater than 2.0 D. The flat and steep keratometry values gradually increased with age. The mean ACD and WTW showed increasing trends as the AL increased (P < 0.001). When the AL was shorter than 26.0 mm, the keratometry decreased as AL increased. The against-the-rule (ATR) astigmatism proportion increased with age and the with-the-rule (WTR) astigmatism proportion decreased with age.ConclusionsThe profile of ocular biometric data and corneal astigmatism may help ophthalmologists improve their surgical procedures and make an appropriate IOL choice to gain a high quality of postoperative vision.

【 授权许可】

CC BY   
© The Author(s). 2017