Korean J Ophthalmol.  2005 Mar;19(1):23-28. 10.3341/kjo.2005.19.1.23.

The Effect of Capsular Tension Ring on Posterior Capsular Opacity in Cataract Surgery

• Kim JH
• Kim H
• Joo CK

• KMID: 1099081
• DOI: http://doi.org/10.3341/kjo.2005.19.1.23

Abstract

This study was performed to evaluate the efficacy and safety of the capsular tension ring on posterior capsular opacity in comparison with cases undergoing intraocular lens (IOL) implantation alone. We analyzed 127 eyes which had undergone cataract surgery, including capsular tension ring insertion, along with 127 eyes which had undergone IOL implantation alone by the same surgeon from September 1998 to March 2003. In the insertion group, 41 eyes (group A) had been followed up for more than one year after silicone IOL implantation, as had 40 eyes (group B) in the control group. We compared the incidence, type, and degree of capsular opacity between A and B groups and also endothelial cell loss after surgery between the two groups. For insertion group A, the frequency of posterior capsular opacity was lower (7.3%), the duration to development was longer, and the energy required for Nd-Yag capsulotomy of PCO was less than for control group B (25%) (p=0.037). The endothelial cell count loss rate was not significantly different between the two groups (p=0.522). The capsular tension ring is associated with a significantly reduced incidence of posterior capsular opacity and is a safe procedure.

Keyword

Capsular tension ring; Cataract surgery; Posterior capsular opacity

MeSH Terms

Adult
Aged
Aged, 80 and over
Capsulorhexis/*instrumentation
Cataract/*prevention & control
Female
Humans
Lens Capsule, Crystalline/*pathology
Lens Implantation, Intraocular
Male
Middle Aged
Phacoemulsification
Polymethyl Methacrylate
Postoperative Complications/*prevention & control
*Prostheses and Implants
*Prosthesis Implantation
Safety
Treatment Outcome

Figure

• 

  Fig. 1 Comparison of the incidence and type of posterior capsular opacity between groups A and B. *statistically significant difference (p=0.037 on Fisher's exact test)

• 

  Fig. 2 Comparison of the mean preoperative and postoperative endothelial cell density between the tension ring group and the control group. *no statistically significant difference (p=0.624, unpaired t test)

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