A novel method for measuring anterior segment area of the eye on ultrasound biomicroscopic images using photoshop.

ABSTRACT:

Purpose

To describe a novel method for quantitative measurement of area parameters in ocular anterior segment ultrasound biomicroscopy (UBM) images using Photoshop software and to assess its intraobserver and interobserver reproducibility.

Methods

Twenty healthy volunteers with wide angles and twenty patients with narrow or closed angles were consecutively recruited. UBM images were obtained and analyzed using Photoshop software by two physicians with different-level training on two occasions. Borders of anterior segment structures including cornea, iris, lens, and zonules in the UBM image were semi-automatically defined by the Magnetic Lasso Tool in the Photoshop software according to the pixel contrast and modified by the observers. Anterior chamber area (ACA), posterior c

SUBMITTER: Wang Z 

PROVIDER: S-EPMC4372209 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature