Laser Refractive Corneal Surgery Assisted By A Virtual Postoperative Corneal Simulation - A Comparative Analysis Of Real Versus Virtually Simulated Postoperative Outcomes
Published 2025 - 43rd Congress of the ESCRS
Reference: FP06.09 | Type: Free paper | DOI: 10.82333/3787-5m09
Authors: Francesco Carones* 1 , Claudette Abela-Formanek 2 , Gerd Auffarth 3 , Allon Barsam 4 , Başak Bostanci 5 , Dean Corbett 6 , Tiago Ferreira 7 , Fernando Llovet 8 , Sanjay Mantry 9 , Alain Saad 10
1Advalia Vision,Milan,Italy, 2Ophthalmology and Optometry,Medical University of Vienna,Vienna,Austria, 3Ophthalmology,Universitäts-Augenklinik Heidelberg,Heidelberg,Germany, 4OCL Vision,London,United Kingdom, 5Üniversitesi Tıp Fakültesi,Istanbul,Türkiye, 6Auckland Eye,Auckland,New Zealand, 7Clínica Privada de Oftalmologia,Lisbon,Portugal, 8Clinica Baviera Aier Group,Valencia,Spain, 9Vision Scotland,Edinbugh,United Kingdom, 10Rothschild Foundation Hospital,Paris,France
Purpose
A Virtual Postoperative Corneal Simulation may assist complex therapeutic laser refractive corneal surgery cases. Being able to accurately foresee the final topography and refraction after repair surgery would be a boon to all corneal refractive surgeons. This preview may help correct corneal refractive surgery cases with complications.
Setting
Private practice, Jerry Tan Eye Surgery, Singapore
Methods
A series of customized corneal refractive surgery treatments were retrospectively reviewed. The original planned treatments were previewed by a foresight topographic algorithm. Corneal measurements encompassed corneal tomography, topography, epithelial and stromal thickness measured with a Spectral domain optical coherence tomographer/ topographer. The pre-operative measurements from this system were input into the preview algorithm along with the original treatment (including relevant parameters like the optical zone size, type of wavefront-driven treatment (Ocular or Topography), refraction & type of ablation - e.g. PRK, TransPRK, LASIK. The actual postoperative measurements and refractions after correction were compared to the preview.
Results
Results show that there is a close correlation between the preview and actual post-operation data. The post-operative topographies were accurately depicted by the algorithm. The estimated postoperative refraction from the preview was consistent with the trend observed in actual postoperative refraction.
Conclusions
Despite its early stage of development, the preview algorithm showed promising accuracy and enormous potential. Subsequent refinements into future versions of this algorithm, may make complex cases accessible to everyone. This preview algorithm aims to educate surgeons and patients alike in the correction of complex corneal refractive surgery cases.