Long-Term Prospective Follow-Up Study of Myopic Photorefractive Keratectomy

• Published in: Ophthalmologica (Basel) Vol. 222; no. 6; pp. 386 - 390
• Main Authors: Liu, Zhaoqiang, Wang, Lihua, Xu, Xiaoyi, Cheng, Zhenying, Zhou, Fang, Li, Jinghai
• Format: Journal Article
• Language: English
• Published: Basel, Switzerland Karger 01.01.2008; S. Karger AG
• Subjects: Adult; Biological and medical sciences; Cornea - diagnostic imaging; Cornea - pathology; Cornea - surgery; Female; Follow-Up Studies; Humans; Male; Medical sciences; Middle Aged; Miscellaneous; Myopia - physiopathology; Myopia - surgery; Ophthalmology; Original Paper; Patient Satisfaction; Photorefractive Keratectomy - methods; Prospective Studies; Refraction, Ocular; Surveys and Questionnaires; Time Factors; Treatment Outcome; Ultrasonography; Vision disorders; Visual Acuity; Young Adult; Refraction; Stability; Photorefractive keratectomy; Prospective; Eye disease; Follow up study; Vision disorder; Refractive error; Myopia; Ophthalmology; Long term
• ISSN: 0030-3755; 1423-0267
• DOI: 10.1159/000151739

The aim of this study was to evaluate the long-term outcome of excimer laser myopic photorefractive keratectomy (PRK). We undertook an 11-year prospective follow-up study of visual and refractive outcomes in 46 patients (85 eyes). The main outcome measures were predictability, efficacy, stability and safety of PRK. At 11 years after the operation, 56.5% of eyes were within ±0.5 D of attempted correction and 81.2% were within ±1.0 D; 87% had vision of 20/40 or better, and 52% had 20/20 or better. The best spectacle-corrected visual acuity was unchanged or improved in 91% of eyes at 11 years. Eyes with moderate and severe myopia showed a significant change between 3 and 11 years. PRK surgery for myopia shows predictable and stable results in the long term, with a slight regression in refraction, mainly for patients with severe myopia.