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Optical quality after implanation of the new tecnis symphony ® IOL

Poster Details

First Author: A.Toso ITALY

Co Author(s):    S. Morselli              

Abstract Details

Purpose:

To evaluate the post operative visual and optical quality of the eye implanted with this new type of multifocal IOL

Setting:

San Bassiano Hospital, Bassano del Grappa (VI), Italy

Methods:

We considered 22 eyes of 11 patients affected by cataract, mean age was 76,7 ±3,65 years. After 1st month, post operative best corrected distance visual acuity and distance-corrected near visual acuity was evaluated . All eyes underwent pre-operative corneal aberrations analysis with KR-W1 Topcon™ aberrometer. After 1st month, pre and post operative corneal aberrations were compared. Also post operative total ocular, high order and corneal aberrations (HOA) were separately considered to determine the post operative HOA and spherical aberration Z(4,0) induced by this IOL at 4 mm pupil diameter. PSF was evaluated by OQAS™ Visiometrics™

Results:

Post operative best corrected distance visual acuity was 0,096±0,012 log MAR , distance corrected near visual acuity at 40 cm was 0,165±0,066 log MAR and pre operative corneal HOA were 0,725±0,06 μ RMS post operative corneal HOA were 0,726 ±0 ,07. Post operative total ocular HOA were 0,3945±0,10 μ RMS ,internal HOA were0,043±0,008 μ RMS at 4 mm. Internal spherical aberration were -0,025±0,007 μ. PSF measured by OQAS was 0,6±0,02 .

Conclusions:

This new type of IOL give to the patient high quality of visual acuity both for distant and near vision. High order aberrations and spherical aberrations were not increased by this IOL. Ocular total high order aberrations were less than high order corneal aberrations, this means that this IOL compensate high order natural corneal aberrations. Negative spherical aberrations Z(4,0) induced by this IOL is less than monofocal Tecnis IOL. PSF wae very high and the value was close to a young normal eye.

Financial Disclosure:

One or more of the authors travel has been funded, fully or partially, by a company producing, developing or supplying the product or procedure presented

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