Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract.

ABSTRACT:

Purpose

This prospective cohort study aimed to assess the influence of tear film stability on corneal refractive power measurement and surgical planning in cataract patients.

Methods

Participants were divided into tear film instability (tear film stability level 2) and control (level 0-1) groups based on Keratograph 5M results. Using IOL Master 700, two consecutive measurements were obtained with a 10-min interval. Parameters including standard keratometry (Kf, Ks and K), keratometric corneal astigmatism (KCA), total keratometry (TKf, TKs and TK) and total corneal astigmatism (TCA) were recorded. IOL power was calculated using SRK-T, SRK-T TK, Haigis, Haigis TK, Barrett Universal II, and Barrett Universal II TK formulas.

Results

The results showed significantly higher

SUBMITTER: Jiang Y 

PROVIDER: S-EPMC11979470 | biostudies-literature | 2025 May-Jun

REPOSITORIES: biostudies-literature