Effects of Axial Length and Vitrectomy on Refractive Error after Cataract Surgery Using SRK/T Formula.
10.3341/jkos.2013.54.2.257
- Author:
Min Kyu LEE
1
;
Kyu Yeon HWANG
;
Man Soo KIM
Author Information
1. Department of Ophthalmology and Visual Science, The Catholic University of Korea School of Medicine, Seoul, Korea. mskim@catholic.ac.kr
- Publication Type:Original Article
- Keywords:
Axial length;
Cataract surgery;
Effective lens position;
Refractive error;
Vitrectomy
- MeSH:
Cataract;
Eye;
Humans;
Lenses, Intraocular;
Reference Values;
Refractive Errors;
Retrospective Studies;
Vitrectomy
- From:Journal of the Korean Ophthalmological Society
2013;54(2):257-264
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To investigate the error tendency between preoperative target diopter and postoperative manifest refraction in cataract surgery cases and the effect of axial length and vitrectomy on refractive error (RE). METHODS: We retrospectively studied 90 eyes of 90 patients who underwent cataract surgery. The power of intraocular lens (IOL) was calculated by SRK/T formula. Patients were devided into four groups based on axial length (AXL) and the past history of vitrectomy. RESULTS: The mean of RE showed no significant difference between groups. But an increasing AXL was associated with increased myopic shift with normal range AXL (< or =24.4 mm) (r = -0.502, p = 0.005) and increased hyperopic shift with long AXL (>24.4 mm) (r = 0.718, p < 0.001). In vitrectomized eyes, it showed no significant refractive shift with both normal range and long AXL. CONCLUSIONS: When determining IOL power using SRK/T formula in nonvitrectomized eyes, postoperative refractive shift based on axial length should be considered.
