Quantitative ultrasound biomicroscopy of iridocorneal angle

Abstract

Background: 

Ultrasound biomicroscopy (UBM) is a high-resolution ultrasound technique, which allows noninvasive, in vivo imaging of the ocular anterior segment structures.

Purpose: 

This video gives a description of the identification of the iridocorneal angle structures in the cross-sectional view in a radial scan through a typical ciliary process and a guide toward measuring the angle parameters.

Synopsis: 

UBM provides two-dimensional, grayscale images of the iridocorneal angle. The real-time image is displayed on a video monitor and can be recorded for qualitative and quantitative analysis. The angle parameters can be measured by in-built calipers in the machine software and manipulated by the examiner.

Highlights: 

This video demonstrates UBM caliper positions as displayed on the monitor and marked by the examiner for the measurement of various anterior segment parameters of the eye.

Video link:https://youtu.be/WTXMupYoyww.

Key words: Angle parameters, quantitative measurements, UBM

Financial support and sponsorship

Nil.

Conflicts of interest

There are no conflicts of interest.