Lamina Cribrosa Steepness Index to Measure the Morphology of the Lamina Cribrosa in Myopic Eyes With Optic Disc Distortion.

ABSTRACT:

Purpose

To propose a new parameter for evaluating lamina cribrosa (LC) morphology in myopic eyes with optic nerve head (ONH) distortion.

Methods

This study included 169 eyes with normal-tension glaucoma (NTG) and myopic ONH distortion from the Myopic NTG Treatment Study. The LC curvature index (LCCI) and the LC steepness index (LCSI) were assessed in optical coherence tomography B-scan images obtained using an enhanced-depth imaging technique. These were measured as the curvature of the anterior LC surface within Bruch's membrane opening and as the slant of the temporal anterior LC surface relative to the plane of the anterior scleral opening, respectively.

Results

The LCSI was strongly correlated with the LCCI (R2 = 0.594, P < 0.001). A larger LCSI was associated wit

SUBMITTER: Lee EJ 

PROVIDER: S-EPMC12366862 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature