Epithelial Remodeling And Clinical Outcomes In Transepithelial-Prk With Customized Epithelial Ablation
Published 2023 - 41st Congress of the ESCRS
Reference: PO1041 | Type: Free paper | DOI: 10.82333/2jp4-jz57
Authors: Juan Arbelaez* 1 , Maria Clara Arbelaez 1
1ophthalmology ,Muscat eye laser center ,muscat,Oman
Purpose
The aim of this retrospective analysis was to evaluate the clinical outcomes and epithelial remodeling in eyes with different magnitudes of myopia/astigmatism treated with transepithelial-PRK customizing the epithelial ablation nomogram based on OCT preoperative data.
Setting
Muscat Eye Laser Center
Methods
208 eyes with myopia/astigmatism and spherical equivalent (SEQ) of -2.70D (±1.27) were treated with Transepithelial-PRK with large optical zones (OZ) mean 7.3mm (±0.28) using the Schwind Amaris 1050RS. The ablation nomogram for the epithelium was individually planned for each eye using data from the CSO Anterior segment OCT (AS-OCT) MS39. Visual acuity, manifest refraction, AS-OCT, and corneal wavefront aberrations were measured preoperatively, and at 3 months after surgery. The refractive outcomes, epithelial remodeling, and the effective optical zones were evaluated 3 months after surgery.
Results
Mean postoperative SEQ was -0.03D (±0.1), with 99% of the eyes within 0.50D of the target. 96% of the eyes with UDVA same or better than preoperative CDVA and 22% of them improving 1 or more lines. 22% of the eyes gained lines of CDVA and 3 eyes lost 1 line of CDVA. No significant central epithelial remodeling was seen p= 0.7.
Conclusions
Transepithelial-PRK with customized epithelial ablation and large OZ provided effective, safe, and predictable outcomes for the correction of myopia/astigmatism with excellent visual acuity and no significant central epithelial remodeling.