2003•PubMedRequires access

[Study of diopters-cutting in treatment of PRK for myopia].

Zicai Huang, Zhongxia Zhou, Suyan Chen, Hongni Li, Hua Chen, Shuwen Liu

Abstract

PURPOSE: To study a method of determining the diopters-cutting for photorefractive keratectomy (PRK) pre-operation. METHODS: By statistics, to analyze the differences of diopter between optometry of mydriasis and keratectomy in 143 cases 209 eyes of medium myopia with complete data recorded. RESULT: The average diopter for optometry of mydriasis is -4.32 D, for keratectomy, -4.74 D. The average of differences is (0.42 +/- 0.173) D, P < 0.01. CONCLUSION: The numerical value of diopter-cutting for operation should be higher than for optometry of mydriasis in treatment of PRK for myopia.

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Key concepts: Dioptre, Photorefractive keratectomy, Mydriasis, Medicine, Optometry, Ophthalmology, Refractive error, Eye disease