Laser Vision Correction After Radial Keratotomy: Systematic Review and Meta-Analysis Publisher Pubmed

Summary: Meta-analysis suggests laser vision correction improves vision in post-RK patients, especially for hyperopia. #EyeSurgery #VisionCorrection

Koosha N¹ ; Riazi MS¹ ; Janfaza P¹ ; Mohammadbeigy I¹ ; Rahimi A² ; Khoshali M³ ; Pourazizi M¹ ; Peyman A¹
Source: Journal of Cataract and Refractive Surgery Published:2024

Abstract

Laser vision correction for residual refractive errors in patients with previous radial keratotomy (RK) presents a challenging task. Different techniques have been used with varying outcomes. This study aimed to systematically review published articles on refractive surgeries in post-RK patients by conducting a search on PubMed, Scopus, and Web of Science. The final analysis included 35 studies that described a total of 888 eyes. Our systematic review and meta-analysis demonstrated a significant improvement in uncorrected distance visual acuity (UDVA) for photorefractive keratectomy (PRK), topography-guided PRK, wavefront-guided PRK, and femtosecond laser-assisted in situ keratomileusis (LASIK) while mechanical microkeratome LASIK did not yield such significant improvements. Moreover, our results suggest that post-RK patients with hyperopia had a significant improvement in UDVA, whereas no such improvement was observed in patients with myopia. © 2024 Lippincott Williams and Wilkins. All rights reserved.