개방형고리를 이용한 수정체전낭 원형절개술의 유용성
Usefulness of Open Ring Guider for Continuous Curvilinear Capsulorrhexis
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초록
목적: 백내장 수술 중 전낭절개시에 고전적인 수정체낭원형절개(continuous curvilinear capsulorrhexis)와 비교하여 개방형고리(open ring guider for CCC)를 이용한 술기에서 전낭절개의 크기, 원형성 및 재현성을 알아보고자 하였다. 대상과 방법: 동일한 수술자가 5.3 mm 개방형고리를 이용하여 전낭절개를 시행한 60안(사용군)과 고전적인 수정체낭원형절개를 이용하여 백내장 수술을 시행한 60안(비사용군)을 비교하였다. 수술 도중 전낭절개 직후의 사진, 초음파유화술이 끝난 직후의 사진, 인공수정체를 삽입하고 각막 수화술을 마친 후의 사진을 각각 촬영하였다. 두 군의 사진을 이용하여 수술 중 전낭의 지름 및 면적, 원형성을비교 분석하였다. 결과: 사용군과 비사용군에서 인공수정체를 삽입한 후의 전낭 지름은 각각 5.32 ± 0.26 mm, 5.14 ± 0.64 mm (변동계수: 0.049, 0.125) 면적은 22.92 ± 0.71 mm2, 21.40 ± 1.37 mm2 (변동계수: 0.031, 0.064)로 측정되었다. 원형성은 사용군과 비사용군에서 각각0.93 ± 0.24, 0.86 ± 0.78 (변동계수: 0.258, 0.907)로 측정되었다. 결론: 개방형고리를 이용하는 경우 더 큰 지름과 면적을 가지며, 재현성과 원형성이 잘 유지되는 전낭절개가 가능하였다. 개방형고리를잘 활용하는 경우 이상적인 전낭절개를 통한 성공적인 백내장 수술을 수행할 수 있을 것이다.
Abstract
Purpose: To compare the size, circularity and repeatability between the conventional manual technique and the open-ring guided continuous curvilinear capsulorrhexis (CCC) technique in cataract surgery. Methods: The present study comprised 120 eyes divided into two equal groups. In the first group (group A), CCC was performed using a 5.3-mm open ring-shaped caliper and in the second group (group B), CCC was performed using the conventional manual technique. Photographs were taken after each surgical step (CCC, phacoemulsification, Intraocular lens insertion and corneal stromal hydration). The diameter, area and circularity of the anterior capsule were compared between the two groups. Results: The anterior capsule diameter was 5.32 ± 0.26 mm for group A (coefficient of variation 0.049) and 5.14 ± 0.64 mm for group B (coefficient of variation 0.125); the area was 22.9 ± 0.71 mm2 for group A (coefficient of variation 0.031) and 21.40 ± 1.37 mm2 for group B (coefficient of variation 0.064). Circularity was 0.93 ± 0.24 for group A (coefficient of variation 0.258) and 0.86 ± 0.78 for group B (coefficient of variation 0.907). Conclusions: The open ring-guided CCC technique resulted in an increase of diameter and capsulorrhexis area. This method showed superior circularity and repeatability compared to conventional manual technique and can be useful in cataract surgery.
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