ISSN: 2155-9570
Kazuno Negishi
Japan
Research Article
Objective Evaluation of Zonular Weakness: Measurement of Lens Movement at the Start of Capsulorhexis Using Extracted Porcine Eyes
Author(s): Yukari Yaguchi, Shigeo Yaguchi, Saori Yaguchi, Tadahiko Kozawa, Yuichiro Tanaka, Kazuno Negishi and Kazuo TsubotaYukari Yaguchi, Shigeo Yaguchi, Saori Yaguchi, Tadahiko Kozawa, Yuichiro Tanaka, Kazuno Negishi and Kazuo Tsubota
Objective: To evaluate the degree of zonular weakness based on lens movement at the start of capsulorhexis using extracted porcine eyes. Methods: Zonular dehiscence of 18°, 36°, and 54° was created and alternated with healthy areas into five zones to create a model simulation of weakness of the zonule of Zinn corresponding to dehiscence of 90°, 180°, and 270°. During continuous curvilinear capsulorhexis (CCC), an image displaying the anterior capsule grasped by a cystotome and another displaying the initial tear were captured, and the two images were superimposed to measure the movement distance of the cortical opacities created using a hook. Porcine eyes with no dehiscence were used as the control group. Results: Compared with a distance of 0.44 ± 0.13 mm in the control group, the cortical opacity movement distances in the weakness group with dehiscence.. View More»
DOI:
10.4172/2155-9570.1000541