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Safety and efficacy of overnight orthokeratology for myopia in Taiwan

Poster Details

First Author: W.Lin TAIWAN

Co Author(s):    S. Hsu              

Abstract Details


This study was conducted to describe the safety and efficacy of overnight orthokeratology among myopic patients in Taiwan.


This prospective case series study was conducted in two medical centers in Taiwan.


Seventy-seven subjects (ages 12 to 54) were enrolled in the 10-month pilot study. Uncorrected visual acuity (UCVA), refractive error, corneal topography, biomicroscopic data, intraocular pressure, and endothelial cell density were collected to determine the efficacy, and a safety profile of overnight orthokeratology.


Sixty-eight subjects (ages 12 to 54) completed the study. The mean baseline manifest refraction spherical equivalent (MRSE) was between -1D to -4D. The UCVA (Snellen chart) were better than 0.8 in 100% of patients, and better than 1.0 in 98.51% of patients at 9 months. No significant change in UCVA, MRSE and corneal curvature was noted one month after discontinuation of orthokeratology, compared with baseline data. No serious adverse events occurred during the study.


The results indiacated that short-term correction of mild to moderate myopia with overnight orthokeratology is safe and efficacious in myopic patients. FINANCIAL INTEREST: NONE

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