Decentration, tilt, and near vision of the array multifocal intraocular lens

Abstract

Purpose: To study the periodic changes in decentration, tilt, and near vision in eyes with the Array(R) multifocal intraocular lens (IOL).

Setting: Department of Ophthalmology, St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Method: This study comprised 20 eyes of 10 patients older than 60 years who had binocular cataract and bilateral implantation of the Array multifocal IOL. Mean patient age was 66.0 years (range 60 to 75 years). After a clear corneal incision and continuous curvilinear capsulorhexis were made, each eye had phacoemulsification and in-the-bag IOL implantation. The amount of IOL decentration and degree of tilt were evaluated using the EAS-1000 anterior eye segment analysis system 1 day and 1 and 2 months postoperatively. Near and far visual acuities were measured at the same examinations.

Results: No statistically significant differences were observed in decentration (P =.13) or tilt (P =.32) throughout the follow-up. Mean uncorrected distance visual acuity was 0.68 +/- 0.27 (SD), and mean uncorrected near acuity was 0.49 +/- 0.15 2 months postoperatively. Uncorrected distance acuity better than 0.5 was achieved in 14 eyes (77.8%), in which the mean uncorrected distance acuity was 0.80 +/- 0.18 and the mean uncorrected near acuity was 0. 53 +/- 0.14 2 months postoperatively.

Conclusions: Tilt and decentration of the Array multifocal IOL showed no significant progression up to 2 months after implantation. For near acuity, the Array IOL may be an effective aid.