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Confirmation of intraocular lens powers: spherical and Toric by using wavefront intraoperative aberrometry

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Session Details

Session Title: Pseudophakic IOLs: Toric Cataract Surgery Equipment

Session Date/Time: Tuesday 08/09/2015 | 14:00-16:00

Paper Time: 14:46

Venue: Room 1

First Author: : K.Solomon USA

Co Author(s): :    H. Sandoval                    

Abstract Details

Purpose:

The use of wavefront intraoperative aberrometry (WIA) is an alternative available to surgeons to confirm spherical power of the intraocular lens (IOL) as well as the toric power and axis of orientation. The purpose of this review was to compare the refractive outcomes after routine phacoemulsification and implantation of a toric IOL with and without wavefront intraoperative aberrometry.

Setting:

Carolina Eyecare Physicians, Charleston, SC, USA

Methods:

Medical records of patients who underwent uneventful routine cataract surgery and toric IOL implantation between July 2013 and July 2014 were retrospectively reviewed. Post refractive surgery eyes were excluded. Based on the use of wavefront intraoperative aberrometry (Optiwave Refractive Analysis – ORA, Alcon, Fort Worth, TX, USA) at time of surgery, eyes were divided into 2 groups: control group (no WIA used) and WIA group. Postoperative manifest refraction and percentage of eyes within ±0.25 D and ±0.50 D of target were evaluated and compared between the 2 groups were done. A P less than .05 was considered statistically significant.

Results:

Seventy-nine eyes were included in the analysis. No significant differences in mean age, amount of preoperative astigmatism, IOL power, follow-up time, manifest sphere, astigmatism and manifest refraction spherical equivalent (MRSE) between the 2 groups were seen (P less than .05, Mann-Whitney U test). Postoperative MRSE was within ±0.50D in 92% and 84% in the wavefront intraoperative aberrometry group (n = 36 eyes) and the control group (n = 43 eyes), respectively. Percentage of eyes with residual manifest astigmatism within 0.50D was significantly higher in the wavefront intraoperative aberrometry group (83%) compared to 67% in the control group (P less than .01, Chi-square test).

Conclusions:

Refractive outcomes after routine, uneventful cataract surgery with the implantation of a toric IOL can be significantly improved with the use of wavefront intraoperative aberrometry as shown by the low residual refractive astigmatism in this group compared to the control.

Financial Interest:

One of the authors receives consulting fees, retainer, or contract payments from a competing company

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