The role of the epithelium in intraocular lens and corneal power calculation.

ABSTRACT:

Purpose

To investigate the influence of the corneal epithelium on corneal power, particularly in special cases such as post-refractive surgery and keratoconus.

Methods

A retrospective observational study. Measurement data were obtained from a high-resolution anterior segment analyser (CSO MS-39). Corneal curvature and power data, as well as surface height data, were organised in a cylindrical coordinate system. Calculations considered one, two and three refractive surfaces, examining the role of epithelial thickness and stromal curvature.

Results

The effect of the epithelium on corneal power was minimal (<0.1 D) in normal corneas, but it was considerable in keratoconus and post-refractive surgery cases, with differences up to 0.9 D. The effect decreased for larger mea

SUBMITTER: Wendelstein JA 

PROVIDER: S-EPMC11823397 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature