Comparison of color light-emitting diode corneal topographer and dual rotating Scheimpflug-placido topographer

Session Details

Session Title: Cornea: Surgical II

Session Date/Time: Sunday 08/10/2017 | 14:30-16:00

Paper Time: 15:30

Venue: Room 3.6

First Author: : J.H Lee SOUTH KOREA

Co Author(s): :    Y.W Lee   J.H Lee   J.S Lee   C.Y Choi           

Abstract Details

Purpose:

To compare measurements of corneal indices using Color Light-Emitting Diode corneal topographer and dual rotating Scheimpflug-Placido topographer.

Setting:

Prospective cross-sectional study, Department of Ophthalmology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea

Methods:

Sixty post-refractive surgery eyes and 60 normal eyes were evaluated. Anterior and posterior corneal power measurements were performed and compared using Color Light-Emitting Diode corneal topographer (Cassini) and dual rotating Scheimpflug-Placido topographer (Galilei G4). The paired t test, intraclass correlation coefficients (ICCs) and Bland-Altman were used for statistics.

Results:

Both devices provided highly repeatable corneal measurements. The agreement levels of anterior keratometric values between 2 devices were higher than mean total corneal power (TCP) in both groups. (ICC>0.9) The ICC value for posterior keratometric values were lower than 0.9 in both groups.

Conclusions:

Anterior keratometric values obtained by 2 different devices showed high agreement levels, whereas TCP and posterior keratometric values showed lower agreement levels in both groups.

Financial Disclosure:

NONE