Finite element analysis of neodymium: yttrium-aluminum-garnet incisions for the prevention of anterior capsule contraction syndrome / 中华医学杂志(英文版)
Chinese Medical Journal
; (24): 692-696, 2013.
Article
em En
| WPRIM
| ID: wpr-342515
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>BACKGROUND</b>Anterior capsular contraction syndrome is a potential complication of continuous curvilinear capsulorhexis (CCC). Three neodymium: yttrium-aluminum-garnet (Nd:YAG) laser relaxing incisions decrease anterior capsular contraction but the mechanism is unknown. The present study analyzed the biomechanical mechanism of three Nd:YAG laser relaxing incisions made to reduce anterior capsular contraction.</p><p><b>METHODS</b>A three-dimensional control model and a three-dimensional Nd:YAG model of the anterior capsule with an opening diameter of 6 mm were created. Three incisions of 1 mm in length were made centrifugally at intervals of 120° around the opening circle. The stress alterations of the anterior capsule after CCC with and without Nd:YAG relaxation were numerically simulated and compared.</p><p><b>RESULTS</b>In the control model, the stress was axially uniform in the inner area and relatively high near the inner rim of the opening. Meanwhile, in the Nd:YAG model, the stress level was very low in the inner opening areas, especially near the three incisions. The relaxing incisions in the Nd:YAG model significantly released the relatively high stress on the anterior capsule. Additionally, there was a high stress gradient near the relaxing incisions.</p><p><b>CONCLUSION</b>Biomechanical effects of stress release may be the preventive mechanism of Nd:YAG incision against anterior capsular contraction syndrome.</p>
Texto completo:
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Base de dados:
WPRIM
Assunto principal:
Ítrio
/
Capsulorrexe
/
Análise de Elementos Finitos
/
Usos Terapêuticos
/
Alumínio
/
Doenças do Cristalino
Limite:
Humans
Idioma:
En
Revista:
Chinese Medical Journal
Ano de publicação:
2013
Tipo de documento:
Article