什么是屈光不正?
The regression coefficient between corneal power and the refractive error increased from apex to peripheral area.
角膜中央到周边曲率与等效球镜度的回归系数逐渐增加。
Objective: to investigate the changes of corneal shape and how to correct the refractive error after penetrating keratoplasty (PKP).
目的:探讨穿透性角膜移植术(pkp)后的角膜形状改变以及如何进行屈光矫正。
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