Changes and effects of orthokeratology on cornea morphology

Abstract

AIM:To investigate the changes and effects of orthokeratology on corneal morphology. METHODS: Totally 90 patients were treated with orthokeratology from January 2015 to December 2016. They were divided into observation group(overnight wearing)and control group(daytime wearing), 45 cases(90 eyes)in each. The central corneal thickness, corneal curvature,spherical equivalent(SE), uncorrected visual acuity(UCVA)of both groups were compared before and after wearing orthokeratology lens for 1wk, 1, 3, and 6mo.RESULTS: The central corneal thickness of two groups before wearing glasses was significantly higher than that of the cornea after wearing glasses 1wk, 1, 3 and 6mo(all PPP vs 41.3±0.9D, P vs -0.52±0.19D, PPCONCLUSION: Wearing orthokeratology lens can reduce myopia degree. Wearing it overnight has the better outcome than wearing in the daytime.

Keywords

• orthokeratology lens
• myopia
• corneal morphology
• corneal morphology