Intraocular lens power calculation using adjusted corneal power in eyes with prior myopic laser vision correction
- Authors
- Huh, Jungah; Eom, Youngsub; Yoon, Eun Gyu; Kim, Jun-Heon; Song, Jong Suk; Kim, Hyo Myung
- Issue Date
- 12월-2021
- Publisher
- SPRINGER
- Keywords
- Calculation; Corneal power; Intraocular lens power; Myopic laser vision correction
- Citation
- GRAEFES ARCHIVE FOR CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY, v.259, no.12, pp.3729 - 3737
- Indexed
- SCIE
SCOPUS
- Journal Title
- GRAEFES ARCHIVE FOR CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
- Volume
- 259
- Number
- 12
- Start Page
- 3729
- End Page
- 3737
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/135514
- DOI
- 10.1007/s00417-021-05309-7
- ISSN
- 0721-832X
- Abstract
- Purpose To evaluate the prediction accuracy of the intraocular lens (IOL) power calculation using adjusted corneal power according to the posterior/anterior corneal curvature radii ratio in the Haigis formula (Haigis-E) in patients with a history of prior myopic laser vision correction. Methods Seventy eyes from 70 cataract patients who underwent cataract surgery and had a history of myopic laser vision correction were enrolled. The adjusted corneal power obtained with conventional keratometry (K) was calculated using the posterior/anterior corneal curvature radii ratio measured by a single Scheimpflug camera. In eyes longer than 25.0 mm, half of the Wang-Koch (WK) adjustment was applied. The median absolute error (MedAE) and the percentage of eyes that achieved a postoperative refractive prediction error within +/- 0.50 diopters (D) based on the Haigis-E method was compared with those in the Shammas, Haigis-L, and Barrett True-K no-history methods. Results The MedAE predicted using the Haigis-E (0.33 D) was significantly smaller than that obtained using the Shammas (0.44 D), Haigis-L (0.43 D), and Barrett True-K (0.44 D) methods (P < 0.001, P = 0.001, and P = 0.014, respectively). The percentage of eyes within +/- 0.50 D of refractive prediction error using the Haigis-E (78.6%) was significantly greater than that produced using the Shammas (57.1%), Haigis-L (58.6%), and Barrett True-K (61.4%) methods (P = 0.025). Conclusion IOL power calculation using the adjusted corneal power according to the posterior/anterior corneal curvature radii ratio and modified WK adjustment in the Haigis formula could improve the refraction prediction accuracy after cataract surgery in eyes with prior myopic laser vision correction.
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Collections - College of Medicine > Department of Medical Science > 1. Journal Articles
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