Anterior Segment OCT Thickness Difference Maps for Monitoring Corneal Thickness Changes: Small-Incision Lenticule Extraction as a Model.

ABSTRACT:

Purpose

To develop and validate a self-reconstructed anterior segment optical coherence tomography (AS-OCT) thickness difference map to precisely quantify corneal changes, using lenticule thickness in small-incision lenticule extraction (SMILE) as a model.

Methods

This retrospective study included 22 patients (44 eyes) who underwent SMILE. Using a self-developed R software script, we reconstructed corneal and stromal thickness difference maps from 40,000-point raw AS-OCT data spanning a 10-mm central corneal diameter. The estimated lenticule thickness (ELT) was defined as the maximum thickness change and compared against planned lenticule thickness (PLT) from the VisuMax laser readout. We also compared ELTs derived from Pentacam Scheimpflug tomography at the thinnest and ver

SUBMITTER: Hou YT 

PROVIDER: S-EPMC12707324 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature