Effect of capsule tension ring on short-term refractive stabilization and visual performance in trifocal intraocular...

To provide refractive stability and increase visual performance with the use of a capsular tension ring in trifocal intraocular lens implantation.

This prospective randomized study was conducted in the Yeniyüzyıl university ophthalmology department between February 2018 and September 2019. Eighty-six eyes of 43 patients with visual loss due to uncomplicated cataract in both eyes were randomly divided into two groups, A and B. The eyes in both groups underwent refractive lens exchange with implantation of the same design of trifocal IOL (plate haptic design). In group B, a capsular tension ring was inserted into the capsular bag before trifocal IOL implantation. Both groups were examined at 1day, 1week, 1month, and 3months postoperatively. At 3months after surgery, visual acuity, refractive errors and refractive prediction errors were analyzed and compared between groups A and B.

The postoperative values in group A were spherical equivalent (mean±SD), 0.07±0.79 diopters (D); refractive sphere (mean±SD), 0.43±0.84 diopters (D); uncorrected distance acuity, 0.20±0.04 (logMAR); best-corrected distance acuity, 0±0.02 (logMAR). Group B values were 0.14±0.5 diopters (D), 0.61±0.45 diopters (D), 0.25±0.20 (logMAR), 0.01±0.04 (logMAR), respectively. There was no significant difference between the two groups with respect to the postoperative evaluation.

The use of CTR in the implantation of the trifocal intraocular lens had no statistically significant impact on refractive stability.