Customization Of Uva Light Irradiation In Corneal Crosslinking Using A Passive Eye Tracking Device
Published 2024 - 42nd Congress of the ESCRS
Reference: PP23.09 | Type: Free paper | DOI: 10.82333/q07y-0x32
Authors: Isaak Fischinger* 1 , Robert Herber 2 , Frederik Raiskup 2
1Ophthalmology,Augentagesklinik Spreebogen,Berlin,Germany;Ophthalmology,Kepler Universitätsklinikum,Linz,Austria, 2Ophthalmology,Department of ophthalmology, Carl Gustav Carus University Hospital Dresden,Dresden,Germany
Purpose
To evaluate customized crosslinking using the PXL Platinum 330 (Peschke Medical) with integrated passive eye tracking.
Setting
Department of Ophthalmology, Carl Gustav Carus University Hospital Dresden; Berlin Eye Research Institute, Berlin, Germany
Methods
Eyes with progressive keratoconus were included in this study. All eyes received a customized UVA CXL with an irradiation of two concentric rings centered on the maximum posterior elevation of the corneal tomography. A total fluence of 10.8 J/cm2 was applied in the center and 5.4 J/cm2 in the periphery. Keratometry, best spectacle-corrected visual acuity (BSCVA), and anterior segment optical coherence tomography (OCT) were compared preoperatively and up to 1 year postoperatively.
Results
22 eyes were included. Kmax was reduced significantly (p=0.036). The pachymetry did not show significant changes. The demarcation line measured by OCT was deeper within the area of the cornea, where the maximum fluence was applied and more shallow in the periphery. No adverse events were reported.
Conclusions
Customized CXL with compensation of eye motion by passive eye tracking seems to induce favorable flattening as it is known from other customized CXL protocols with active eye tracking.