Posters

Examination of post-keratoplasty patients with Anterion and Pentacam tomography

Poster Details

First Author: L.Modis HUNGARY

Co Author(s):                        

Abstract Details

Purpose:

To determine anatomical and functional properties of the cornea such as curvature and thickness after corneal transplantation by optical coherence tomography (OCT) and Scheimpflug camera.

Setting:

Department of Ophthalmology, Faculty of Medicine, University of Debrecen, Hungary

Methods:

Investigations were performed with a newly developed Anterion multimodular anterior segment swept-source OCT instrument (Heidelberg Engineering, Germany). For comparison, measurements were also performed with Scheimpflug tomography (Oculus, Wetzlar, Germany). The anterior and posterior axial curvature and thickness data (central and thinnest point) of the cornea were measured in 23 transplanted eyes (mean age: 52.7 ± 3.8) with an average of 73.1 ± 13.4 months after suture removal. The corneal data of 56 healthy eyes (mean age 44.9 ± 2.6) were used as controls. Fifteen healthy corneal reproducibility measurements (Anterion) were also performed three times.

Results:

In healthy corneas the results were significantly different between the two instruments, but the anterior axial refractive power (steep axis) was identical (44.4 ± 3.0 / 43.4 ± 2.2, p = 0.2). The same measurements were performed on post-keratoplasty eyes and identical values were obtained for each parameter without significant difference. The reproducibility of Anterion was extremely high for each of the measured data (Cronbach α = 0.9).

Conclusions:

Both instruments are reliable to determine corneal curvature and thickness data. The evaluated high-resolution SS-OCT system is a comprehensive and precise evaluation tool for postoperative follow-up of patients who have undergone penetrating keratoplasty, because of its high-quality cross-sectional imaging.

Financial Disclosure:

None