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Session Title: Intraocular correction of presbyopia : multifocal IOLs, Monovision
Session Date/Time: Tuesday 08/10/2013 | 14:00-16:00
Paper Time: 15:14
Venue: Elicium 1 (First Floor)
First Author: : T.Monteiro PORTUGAL
Co Author(s): : N. Franqueira R. Dourado Leite F. Vaz
To assess efficacy, safety and predictability after refractive lens exchange (RLE) with bilateral implantation of a diffractive trifocal intraocular lens (IOL) AT LISA tri 839MP (Carl Zeiss Meditec), with +3,33 D near add and +1,66 D intermediate add.
Hospital CUF Porto - Hospital de Braga
100 eyes of 50 patients were examined after RLE with implantation of a trifocal IOL for the correction of presbyopia, the AT LISA tri 839MP IOL. Uncorrected and corrected near, intermediate and distance visual acuity, contrast sensitivity (Pelli-Robson test), reading performance test (MNread) were evaluated postoperatively after a 3 month follow-up study.
100 eyes of 50 patients, mean age 54 years old, submitted to clear lens extraction and AT LISA tri 839MP preloaded IOL implantation for the correction of presbyopia. Post-operative monocular uncorrected visual acuity (snellen decimal) was 0,81 (± 0,09) for near (40 cm), 0,91 (± 0,08) for intermediate (80-90 cm) and 0,95 (±0,04) for far. All patients had mean spherical equivalent < 0,75 D after follow-up. Contrast sensitivity values were similar to a standard monofocal IOL and superior to a bifocal diffractive apodized IOL but not statistically significant. Maximum reading speed was higher in the trifocal group compared with monofocal group with +3,00 add (statistically significant), reading acuity and critical font size were similar between groups. Less than 20% of patients report halos/glare transitory during the first 3 months.
Bilateral implantation of the AT LISA tri 839 MP IOL provides excellent functional vision at all distances, and is an effective procedure for correcting presbyopia after clear lens extraction.
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