Preventive effect of sharp-edged capsule tension ring on posterior capsule opacification

• Main Authors: Hai-Hong Shi, Jian Wu, Ling Yang
• Format: Article
• Language: English
• Published: Press of International Journal of Ophthalmology (IJO PRESS) 2013-09-01
• Series: Guoji Yanke Zazhi
• Subjects: posterior capsule opacification; capsule tension ring; rabbit
• Online Access: http://www.ies.net.cn/cn_publish/2013/9/201309006.pdf
• ISSN: 1672-5123

AIM: To evaluate the effect of sharp-edged capsule tension ring(CTR)on posterior capsule opacification(PCO). <p>METHODS: Twenty eyes of New Zealand white rabbits were randomly divided into two groups. After phacoemulsification, the experimental group was implanted with CTR and Crane OV-55C intraocular lens(IOL), and the control group was implanted with Crane OV-55C IOL only. Complications and PCO were observed by slit lamp microscope. Three months after surgery, light microscope and transmission electron microscope examinations were performed. <p>RESULTS: There was no statistically significant difference between the experimental group and the control group about PCO and Soemmering's ring formation(<i>P</i>>0.05). Pathological evaluations revealed lens epithelial cells(LECs)accumulated at the equatorial capsule forming a large Soemmering's ring and abundant LECs were migrated onto the posterior capsule forming a thick layer in both experimental group and the control group. <p>CONCLUSION: Sharp-edged CTR fail to retard PCO formation and development in rabbits and it is nessessary to improve it.