A Novel Model for Cornea Power Shift in Eyes Wearing Orthokeratology Lenses With Different Back Optic Zone Diameters for Myopia Control.

ABSTRACT:

Purpose

The purpose of this study was to quantify the corneal power changes after wearing orthokeratology lenses of different back optic zone diameters (BOZDs) and to propose a novel 4-parameter model capable of revealing the associations between each parameter and axial length growth (ALG).

Methods

A prospective self-controlled study was conducted between June 2022 and December 2023. One eye in each subject (N = 33) was randomly assigned to wear a lens with a BOZD of either 5 mm (5 oz) or 6 mm (6 oz). Axial lengths were measured at 6 and 12 months and ALG was calculated from those measurements. Corneal topography obtained at baseline, 6 months, and 12 months after lens-wearing was analyzed, and the central flatten region is considered as the treatment zone (TZ). The power c

SUBMITTER: Wang T 

PROVIDER: S-EPMC11918062 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature