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Journal of Ophthalmology
Volume 2015, Article ID 171564, 7 pages
Research Article

The Ocular Biometry of Adult Cataract Patients on Lifeline Express Hospital Eye-Train in Rural China

Peking University People’s Hospital, Ophthalmology Department, Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing Key Laboratory for the Diagnosis and Treatment of Retinal and Choroid Diseases, Beijing 100044, China

Received 23 May 2015; Accepted 5 August 2015

Academic Editor: Qin Long

Copyright © 2015 Xiaoguang Cao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Aims. To describe and explore the distribution of ocular biometric parameters of adult cataract patients in rural China. Methods. Three Lifeline Express Hospital Eye-Train missions of Peking University People’s Hospital in China were chosen. 3828 adult cataract patients aged 29 to 88 years with axial length (AL) less than 27.0 mm were enrolled. The ocular biometry including visual acuity (VA), intraocular pressure, AL, corneal power (1 and 2), and corneal endothelial counting (CEC) were collected and analysis. Corneal radius (CR) was calculated from the corneal power. Results. The participants in Zhoukou of these three missions had the worse preoperative VA (), the lowest 1 (), 2 (), and () and the highest (), moreover AL/CR more closely to 3.0. The AL, , and AL/CR were normally distributed. But the 1, 2, , and CEC were not normal distributions. Except 1, all parameters were positively skewed and peaked. Conclusion. Our study provides normative ocular biometry in a large, representative rural Chinese population. The AL is normally distributed with a positive skew and big kurtosis. The corneal powers are not normal distribution. The corneal astigmatism might have a significant effect on the visual acuity.