Clinical Ophthalmology (Oct 2024)
A Novel Procedure for Treating Radial Keratotomy (RK) Induced Corneal Irregularity Utilizing Treatment of Epithelial Compensation of Higher-Order Aberrations and Topographic Guided Ablation-The CREATE Protocol
Abstract
Manoj Motwani Cornea Revolution/Motwani LASIK Institute, San Diego, CA, 92121, USACorrespondence: Manoj Motwani, Cornea Revolution/Motwani LASIK Institute, 8710 Scranton Road, Ste 170, San Diego, CA, 92121, USA, Tel +1 (858) 554-0008, Email [email protected]: To present the outcomes of a retrospective study of treatment of radial keratotomy-induced corneal irregularity with topographic guided ablation and a trans-epithelial approach based on epithelial compensation.Methods: Sixty eyes of 31 patients were treated for radial keratotomy-induced corneal irregularity utilizing a customized trans-epithelial topographic guided ablation photorefractive keratectomy (PRK) for treatment of corneal higher-order aberrations and lower-order astigmatism. Three-month results were analyzed via measurement of vision, refraction, residual higher-order aberrations (HOAs), residual lower-order and higher-order aberrations, as well as for loss or gains of lines of best corrected visual acuity.Results: Higher-order aberrations (HOA) were reduced by 69%, with an 80% reduction of higher-order aberrations grouped with lower-order aberrations (Grouped). Most (95%) of eyes achieved 20/40 vision or better, 50% of eyes gained 1– 9 lines of best corrected vision, and no eyes had loss of best corrected vision.Conclusion: Use of the CREATE protocol to treat RK-induced corneal irregularity resulted in a significant decrease in HOA, as well as a significant improvement in corrected distance visual acuity.Keywords: astigmatism, higher-order aberrations, radial keratotomy, lower-order aberrations, photorefractive keratectomy, corneal irregularity
