Photopic pupil size change in myopic orthokeratology and its influence on axial length elongation.

ABSTRACT:

Aim

To explore the photopic pupil size behavior in myopic children undergoing overnight orthokeratology (ortho-k) over 1-year period and its effects on the axial elongation.

Methods

A total of 202 Chinese myopic children were enrolled in this prospective clinical trial. Ninety-five subjects in ortho-k group and eighty-eight subjects in spectacle group completed the 1-year study. Axial length (AL) was measured before enrollment and every 6mo after the start of ortho-k. The photopic pupil diameter (PPD) was determined using the Pentacam AXL and measured in an examination room with lighting of 300-310 Lx. Stepwise multiple linear regression analysis was used to identify variables contribution to axial elongation.

Results

Compared with spectacle group, the average 1-year

SUBMITTER: Zhu MJ 

PROVIDER: S-EPMC9358181 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature