Journal of the Korean Ophthalmological Society 2005;46(4):629-635.
Published online April 30, 2005.
Clear Lens Extraction for the Correction of Severe High Myopia: Seven-year Follow-up.
Un Chul Park, Jin Hak Lee
1Department of Ophthalmology, Seoul National University College of Medicine, Seoul, Korea. jjhlee@plaza.snu.ac.kr
2Seoul Artificial Eye Center, Seoul National University Hospital Clinical Research Institute, Seoul, Korea.
심한 고도근시 교정 목적의 투명수정체적출술 시행 7년 후의 임상결과
박운철1,이진학1,2
Department of Ophthalmology, Seoul National University College of Medicine1, Seoul, Korea Seoul Artificial Eye Center, Seoul National University Hospital Clinical Research Institute2, Seoul, Korea
Correspondence:  Un-Chul Park, M.D.1
Abstract
PURPOSE
To evaluate the postoperative outcomes and complications 7 years after clear lens extraction (CLE) for the correction of high myopia. METHODS: The medical records of 23 eyes of 15 patients who had undergone CLE to correct myopia higher than -12 diopter and who could be followed up for more than 7 years were reviewed. A scleral tunnel incision and continuous curvilinear capsulorhexis were made, followed by phacoemulsification and posterior chamber intraocular lens implantation. Refractive error, visual acuity and postoperative complications were recorded. RESULTS: Mean follow-up was 98.2 (84~118) months. Posterior capsular opacification developed in 12 eyes (52.2%) and neodymium: YAG laser posterior capsulotomy was performed in 7 eyes. Retinal detachment developed in 3 eyes of 2 patients at 6 months, 34 months, and 9 years after CLE. At 7 years after CLE, the spherical equivalent (SE) of 14 (60.9%) of 20 eyes was within +/- 2 diopter of targeted refractive error. Shift to myopia occurred by 1 diopter compared to SE at 1 year after CLE. Best corrected visual acuity improved by 2 lines in 14 eyes (60.9%) and was 0.5 or better in 17 eyes (73.9%). CONCLUSIONS: CLE for correction of high myopia had good visual outcomes with acceptable predictability. However, long term follow-up revealed gradual increase of serious complications like retinal detachment, posterior capsular opacification, and myopic shift by 1 diopter between 1 year and 7 years after CLE.
Key Words: Clear lens extraction;Myopic shift;Retinal detachment;Seven-year follow-up


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