Retrospective Validation Of A Personalized Corneal Wavefront‐Guided Tprk Procedure Utilizing Innovative Corneal Topography Prediction Software.
Published 2025 - 43rd Congress of the ESCRS
Reference: PP21.12 | Type: Free paper | DOI: 10.82333/hrk8-2858
Authors: Sangeetha Sekaran* 1 , Nivean Madhivanan 1 , PRATHEEBADEVI NIVEAN 2
1RETINA,MN EYE HOSPITAL,CHENNAI,India, 2oculoplasty,MN EYE HOSPITAL,CHENNAI,India
Purpose
To assess the accuracy of predicted corneal indices following TPRK using a novel topographic prediction software in eyes with elevated corneal higher‐order aberrations and a history of laser vision correction (LVC).
Setting
Retrospective case series.
Methods
Thirty eyes were retrospectively included. Among these, 18 had previously undergone LASIK, 10 TPRK, and 12 keratorefractive lenticule extraction (KLEx). Six months postoperatively, key corneal indices—including SimK, maximum K from tangential maps, and corneal toricity—were measured.
Results
At 6 months, the mean differences between predicted and actual values for SimK, maximum K on tangential maps, and corneal toricity were 0.57 ± 0.48 D, 0.64 ± 0.78 D, and 0.32 ± 0.55 D, respectively. Actual measurements fell within ± 0.5 D of predictions in 88% of eyes for SimK, 82% for maximum K, and 91% for corneal toricity.
Conclusions
The innovative corneal topography prediction software produced clinically acceptable postoperative outcomes in eyes with high corneal higher‐order aberrations.