Repeatability of crystalline lens thickness with a new anterior segment optical coherence tomography

Session Details

Session Title: Presented Poster Session: Imaging

Venue: Poster Village: Pod 3

First Author: : V.Vargas SPAIN

Co Author(s): :    J. Alio                       

Abstract Details

Purpose:

To determine the repeatability of the measurement of the crystalline lens thickness with anterior segment-optical coherence tomography (AS-OCT)

Setting:

Vissum, Alicante Spain. Universidad Miguel Hernández

Methods:

Thirty healthy eyes were involved in this observational study. Three measurements of each eye were made in order to determine intraobserver repeatability; main outcome measures were: intraclass correlation coefficient, coefficient of variance and precision index. The AS-OCT used was the MS-39 (CSO, Italy), which automatically gives a horizontal and vertical measurement of the crystalline lens thickness.

Results:

Patients mean age was 67.3 years, the average intraclass correlation was 0.9998 for the horizontal measurement and 0.9997 for the vertical measurement. The coefficient of variance was 0.000 for both measurements, and the precision index was 0.007 for the horizontal measurement and 0.001 for the vertical measurement. The mean crystalline lens thickness was 4.53mm.

Conclusions:

The AS-OCT MS-39 showed a high repeatability in the measurement of the crystalline lens thickness; to our knowledge, this is the only optical device that can do so in a non-invasive way.

Financial Disclosure:

None