Korean Journal of Optometry and Vision Science 2007;6(1):49-53.
Published online December 20, 2007.
양안 인공수정체 삽입술 후 후낭혼탁의 발생시기
이상목, 이진학
1Department of Ophthalmology, Seoul National University College of Medicine, 2Seoul Artificial Eye Center, Seoul National University Hospital Clinical Research Institute, 3Department of Ophthalmology, Seoul Municipal Boramae Hospital, Seoul, 4Department of Ophthalmology, Seoul National University Bundang Hospital, Seongnam, Korea
Posterior Capsule Opacification Occurrence Time in Cases of Bilateral Posterior Chamber Intraocular Lenses Implantation
Sang Mok Lee, Jin Hak Lee
To compare the time of posterior capsule opacification (PCO) occurrence in the first eye and the second eye in bilaterally PC-IOL implanted patients. Methods: This retrospective study comprised of 332 eyes of 166 patients who received phacoemulsification and PC-IOL implantation due to cataract in both eyes from January, 1993 to December, 1998 by one surgeon. Time interval between the surgery and the PCO occurrence and the follow up period was reviewed. Kaplan-Meier method and Mann-Whitney U test were used for statistical analysis. Results: PCO occurred in 12 patients in the first eye only, in 9 patients in the second eye only, and in 13 patients in both eyes. Twenty-five percent PCO occurrence time for the first eye was 51.1 months and for the second eye was 34.9 months using Kaplan Meier survival analysis. Overall PCO occurrence rates were not significantly different between the two groups using log rank test (p=0.15). But in the younger age group(under 60 years old), PCO occurrence time was significantly shorter after the second eyes surgery compared with the first eyes surgery using Mann-Whitney U test (p=0.038). Conclusions: In bilaterally PC-IOL implanted eyes, overall PCO occurrence rates were not significantly different. However, PCO occurs earlier in the second eyes than in the first eyes in the younger age group. (Korean J Optom Vis Sci 2007;6(1):49-53)
Key Words: Bilateral, Posterior capsular opacity, Second eye, Time interval

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