Significant ocular residual astigmatism reduces the effect of orthokeratology lenses in controlling myopia.

ABSTRACT: To investigate the influence of ocular residual astigmatism (ORA) on the therapeutic outcomes of orthokeratology lenses in pediatric myopia management. In this retrospective cohort study, 60 myopic children aged 7-12 years were classified into high-ORA (≥ 1.00 D; n = 30) and low-ORA (< 1.00 D; n = 30) groups on the basis of their baseline ORA, defined as the vector difference between refractive astigmatism and anterior corneal astigmatism. Longitudinal follow-up assessments were conducted at 1 day, 7 days, 1, 3, 6, and 12 months post-lens fitting. Axial elongation (ΔAL) was calculated as the difference between sequential measurements and baseline values. Differences in axial elongation (ΔAL) during the follow-up period were statistically analyzed using repeated measures analysis of covaria

SUBMITTER: Lin J 

PROVIDER: S-EPMC12923596 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature