Ocular residual astigmatism’s effect on high myopic astigmatism LASIK surgery

• Published in: Eye (London) Vol. 28; no. 8; pp. 1014 - 1019
• Main Authors: Teus, M A, Arruabarrena, C, Hernández-Verdejo, J L, Cañones, R, Mikropoulos, D G
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.08.2014; Nature Publishing Group
• Subjects: 692/308; Adult; Astigmatism - physiopathology; Clinical Study; Cornea - physiopathology; Cross-Sectional Studies; Female; Humans; Keratomileusis, Laser In Situ - methods; Laboratory Medicine; Lasers, Excimer - therapeutic use; Male; Medicine; Medicine & Public Health; Middle Aged; Myopia - physiopathology; Myopia - surgery; Ophthalmology; Pharmaceutical Sciences/Technology; Refraction, Ocular - physiology; Retrospective Studies; Surgery; Surgical Oncology; Visual Acuity - physiology; Young Adult
• ISSN: 0950-222X; 1476-5454
• DOI: 10.1038/eye.2014.133

Purpose To analyze the effect of ocular residual astigmatism (ORA) on the effectiveness of LASIK for treating high myopic astigmatism. Methods This is an observational, cross-sectional study. We studied 116 consecutive myopic eyes with −3 diopters (D) or more of astigmatism that underwent LASIK surgery. The magnitude of uncorrected residual refractive astigmatism 3 months postoperatively was measured. Results The mean preoperative cylinder was −4.0±0.83 D (range, −7.5 to −3 D) and the mean preoperative ORA was 0.82±0.5 D. The mean residual refractive cylinder 3 months postoperatively was −0.78±0.83 D (range, −3 to 0 D). No correlation was found between ORA and the refractive cylinder 3 months postoperatively ( P =0.6). Conclusion In eyes with high myopic astigmatism undergoing LASIK, ORA was not correlated with the residual postoperative cylinder.