J Korean Ophthalmol Soc.  2013 Sep;54(9):1395-1400.

The Effect of Capsular Tension Ring in Patients with a History of Acute Primary Angle Closure

• Park JW
• Jung HH
• Park SW

Abstract

PURPOSE
To evaluate the effect of a capsular tension ring (CTR) on the change in postoperative refractive errors and anterior chamber depth after cataract surgery in patients with a history of acute primary angle closure (APAC).
METHODS
We retrospectively reviewed medical records of 45 patients who underwent cataract surgery with a history of APAC. Forty five eyes were divided into 2 groups based on whether a CTR was implanted (n = 21) or not (n = 24). Spherical equivalent (SE) refractive errors were compared between the 2 groups for 12 months postoperatively. The postoperative anterior chamber depth (ACD) and volume (ACV) were compared between the 2 groups.
RESULTS
SE refractive errors in the CTR group were -0.59 +/- 1.08 D at 6 months and -0.61 +/- 1.04 D at 12 months postoperatively. In the non-CTR group, -0.64 +/- 1.30 D, at 6 months and -0.67 +/- 1.19 D at 12 months postoperatively. There was no statistically significant difference between 2 groups (p = 0.89, p = 0.84) and postoperative SE refraction shifted to myopic refractive power in both groups (p < 0.01). The postoperative ACD and ACV also showed no difference between the 2 groups (p = 0.13, p = 0.47).
CONCLUSIONS
The postoperative ACD, ACV and myopic shift in patients with a history of APAC demonstrated no significant difference between CTR-implanted and non-CTR-implanted patient groups.

Keyword

Acute angle closure; Capsular tension ring; Cataract; Glaucoma; Refractive error

MeSH Terms

Anterior Chamber
Cataract
Eye
Glaucoma
Humans
Medical Records
Refractive Errors
Retrospective Studies

Figure

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  Figure 1. Comparisons of postoperative spherical equivalent between CTR group and Non-CTR group. CTR = capsular tension ring; TR = target refraction; SE = spherical equivalent. * p-values (comparison between TR and postoperative SE in CTR group) < 0.01; † p-values (comparison between TR and postoperative SE in Non-CTR group) < 0.01.

Reference

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