Essential role of ultraviolet radiation in the decrease of corneal endothelial cell density caused by pterygium.

ABSTRACT:

Purpose

To investigate the essential role of ultraviolet (UV) radiation in the decrease of corneal endothelial cell density (ECD) caused by pterygium.

Methods

In this retrospective controlled study, 76 consecutive patients with unilateral primary pterygium were enrolled from January 2016 to August 2016. The Central corneal ECD was measured in both eyes. Divide the subjects into two subgroups according to the UV exposure time, and the difference of corneal ECD between both eyes was analyzed using independent samples t-test. The relationship between the percentage of difference of corneal ECD and the disease duration, the percentage of pterygium to the cornea and the astigmatism value were analyzed.

Results

For subjects with longer UV exposure, the average of ECD in pte

SUBMITTER: Li X 

PROVIDER: S-EPMC6292900 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature