Comparison between toric and non-toric intraocular lens implantation in eyes with corneal astigmatisms

Session Details

Session Title: Toric IOLs

Session Date/Time: Sunday 14/09/2014 | 16:30-18:30

Paper Time: 17:00

Venue: Capital Hall B

First Author: : M.Hirasawa JAPAN

Co Author(s): :    H. Bissen-Miyajima   Y. Inoue   T. Nishimura   H. Takehara   K. Nishikawa  

Abstract Details

Purpose:

To compare the clinical results of toric intraocular lens (IOL) and non-toric IOL in eyes with corneal astigmatism.

Setting:

Multicenter retrospective study

Methods:

This study included eyes with corneal astigmatism from 0.75 D to 3.00 D that were implanted with toric IOL (SN6AT3, AT4, AT5, Alcon) and non-toric IOL (SN60WF, Alcon). Non-toric IOL was implanted before the approval of toric IOL, and the eyes were divided into 3 groups equivalent to AT3, AT4, and AT5 depending on their postoperative corneal astigmatisms. Manifest cylindrical power and uncorrected distance visual acuity (UDVA) were compared at more than 1 year after the implantation.

Results:

Toric group included 142 eyes (mean age: 74.5±6.8 years) and non-toric group included 117 eyes (mean age: 76.1±6.1 years). Manifest cylindrical power of toric/non-toric group was -0.58±0.41 D/-1.04±0.66 D (AT3), -0.59±0.41 D/-1.82±0.72 D (AT4), -0.66±0.45 D/-2.53±0.91 D (AT5). UDVA (logMAR) was 0.00±0.11/0.11±0.16 (AT3), -0.01±0.13/0.24±0.25 (AT4), 0.01±0.12/0.30±0.19 (AT5). Both cylindrical power and VA showed preferable results in the toric group and the difference between toric and non-toric group was statistically significant (P<0.01).

Conclusions:

Toric IOL reduces the manifest cylindrical power and improves uncorrected distance vision in eyes with corneal astigmatisms.

Financial Interest:

One or more of the authors... receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented, One or more of the authors... research is funded, fully or partially, by a competing company, One or more of the authors... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented, One or more of the authors... receives consulting fees, retainer, or contract payments from a competing company