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Comparison of spherical and astigmatic tolerability of three different diffractive mutifocal intraocular lenses with a +2.5, +3.0 and +3.75 diopter addition power

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Session Details

Session Title: Pseudophakic IOLs: Toric & Multifocal

Session Date/Time: Tuesday 08/09/2015 | 08:00-10:30

Paper Time: 09:24

Venue: Room 11

First Author: : O.Muftuoglu TURKEY

Co Author(s): :    E. Altinkurt   M. Ozsutcu                 

Abstract Details

Purpose:

To compare the spherical and astigmatic tolerability of multifocal intraocular lenses (IOLs) with a +2.5, +3.0, and +3.75 diopter (D) addition power.

Setting:

Medipol University Medical School, Istanbul, Turkey

Methods:

This study included 3 groups with each group comprised of 30 eyes of 15 patients who had diffractive aspheric multifocal acrylic IOLs with +2.5 D, +3.0 D, and +3.75 D addition powers. A defocus of -4.00 D and +1.00 spherical correction was decreased or increased in 0.50 D increments, with logMAR acuity recorded at each change in correction until only manifest refraction remained. Astigmatic defocus was simulated by adding 0.50 D, 1.00 D, 1.50 D, and 2.00 D cylindrical lenses at the 180-degree meridian at the spectacle plane after full correction of the manifest refraction.

Results:

The +2.50 group curve showed a mean visual acuity of better than both +3.00 group (from -1.00 D to -1.50 D) and +3.75 group (from -1.00 D to -2.00 D), and the +3.0 group curve showed a mean visual acuity better than +3.75 group (from -1.50 D to -2.0 D). The +3.75 group showed a better visual acuity than +2.50 group (from-2.50 to -4.00 D), and +3.00 group (from-3.00 to -4.00 D) (p<0.05). The +2.50 D group showed better ATR astigmatic tolerability than +3.00 group (at 2.00 D) and +3.75 group (at 1.50 D, and at 2.00 D) (p<0.05).

Conclusions:

Multifocal IOLs with +2.50 D add power tend to have better spherical and astigmatic defocus tolerability than multifocal IOLs with +3.00 D and +3.75 D add powers.

Financial Interest:

NONE

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