Posters

A comparison of contrast sensitivity, visual performance and quality of vision between a trifocal toric IOL and an extended depth of focus toric IOL

Poster Details

First Author: R.Potvin USA

Co Author(s):    K. Gundersen                    

Abstract Details

Purpose:

To evaluate the clinical performance data, including contrast sensitivity, a defocus curve and quality of vision measures, for the AcrySof® Panoptix® and the Tecnis Symfony® toric intraocular lenses.

Setting:

One clinical practice in Haugesund, Norway.

Methods:

This study was a non-interventional two-arm comparative study of visual outcomes after successful bilateral cataract surgery or refractive lens exchange surgery with IOL implantation. Twenty-five subjects in each group assessed during a single visit between 3 months and 5 years after their surgery. There was no masking and no control group. Clinical evaluations included measurement of contrast sensitivity (with and without glare), visual acuity, manifest refraction, and subjective measures of visual quality and near vision. The primary measure of interest was the uncorrected binocular near visual acuity.

Results:

The number of eyes with a spherical equivalent refraction within 0.50 D of plano was not significantly different between groups, nor was the number of eyes with ≤ 0.50 D of refractive cylinder (about 90% in each group for both measures). There were no differences between groups for distance or intermediate vision. The trifocal IOL provided significantly better near vision in both the uncorrected (p = 0.009) and best distance-corrected (p = 0.014) states. There were also no statistically significant differences in any low contrast acuity measures or sine wave contrast sensitivity measures at any distances or illumination conditions tested.

Conclusions:

Low contrast acuity and contrast sensitivity were similar between IOLs at distance and near under photopic and mesopic conditions, suggesting similar visual quality. The only difference observed was better near vision with the trifocal IOL. For patients interested in less dependence on spectacles for near vision, the trifocal IOL may be preferred.

Financial Disclosure:

receives consulting fees, retainer, or contract payments from a company producing, developing or supplying the product or procedure presented