Posters

Visual performance and quality of vision provided by two different trifocal lens designs

Poster Details

First Author: K.Gundersen NORWAY

Co Author(s):    R. Potvin                    

Abstract Details

Purpose:

To compare two different diffractive trifocal intraocular lens (IOL) designs, evaluating longer-term refractive outcomes, visual acuity (VA) at various distances, low contrast VA and quality of vision.

Setting:

iFocus Eye Clinic. Private single surgeon Eye Clinic

Methods:

To compare two different diffractive trifocal intraocular lens (IOL) designs, evaluating longer-term refractive outcomes, visual acuity (VA) at various distances, low contrast VA and quality of vision.Thirty subjects in each group were successfully recruited.

Results:

The binocular defocus curves differed at vergences of -1.0 D (FV better, p = 0.02), -1.5 D and -2.00 D (PX better, p < 0.01 for both). Best distance-corrected and uncorrected binocular vision were significantly better for the PX lens at 60 cm (p < 0.01). The preferred reading distance was between 42 and 43 cm for both lenses, with the VA at the preferred reading distance slightly better with the PX lens (p = 0.04). There were no differences by lens for low contrast VA (p = 0.1) or for quality of vision measures (p > 0.3).

Conclusions:

Both trifocal lenses provided excellent distance, intermediate and near vision, but several measures indicated that the Panoptix lens provided better intermediate vision at 60 cm. This may be important to users of tablets and other hand-held devices. Quality of vision appeared similar between the two lens designs.

Financial Disclosure:

NONE