Eye clinic of the 3rd Faculty of Medicine, Prague, Czech Republic

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Presentation transcript:

Aberration-Free Akreos MI60 Versus Spherical Clariflex and Aspherical Tecnis Z9002 Eye clinic of the 3rd Faculty of Medicine, Prague, Czech Republic Deli Siveková M.D., Magdalena Vokrojová M.D., Lucia Wágnerová M.D., Prof. Pavel Kuchynka, CSc. The authors have no financial interest in the presentation material

Prospective nonrandomized, non-comparative single center study. Purpose To compare visual functions after cataract surgery with implantation of different types of IOL. Prospective nonrandomized, non-comparative single center study.

Examination Preoperatively: - UCVA - BCVA - Wavefront analysis Postoperatively:- UCVA - Contrast sensitivity

Methods 65 eyes of 40 patients 24 (60%) women, 16 (40%) men Mean age: 71,6 (64-84) years Except for cataract, all patients were in healthy ocular condition Surgery: standard operation technique temporal approach incision: 2,6mm Infinity Vision system (Alcon) topical anesthesia

Materials and methods In all patients there was a wavefront analysis and contrast sensitivity. - wavefront - analysis was performed monocularly with Wavescan (VISX, AMO) 3 months postoperatively. - contrast sensitivity (CSV-1000, VectorVision) was measured monocularly with the best distance correction 3 months postoperatively under photopic light conditions (85 cd/m2).

3 groups of IOLs Group A Group B Group C (Bausch&Lomb) (AMO) Akreos AO MI60® (Bausch&Lomb) Clariflex® (AMO) Tecnis Z9002®

Structure Optics Material Refractive index A-constant Akreos AO MI60® Clariflex® Tecnis Z9002® Structure Single piece, foldable, 360° posterior ridge 3-pieces, foldable, UV - blocking filter Optics Aspheric aberration-free optics Biconvex optic diameter 6,0 mm Biconvex optic diameter 6,0 mm Material hydrofilic acrylate polymethyl - diphenylsiloxane polydimethyl - diphenylsiloxane Refractive index 1,45 1,46 A-constant 118,4 118,0

Results (n=65) UCVA BCVA Akreos AO MI60® Clariflex® Tecnis Z9002® 0,64 (0,5 – 1,0) 0,93 (0,63 - 1,0) 0,94 (0,63 - 1,0) BCVA 0,95 (0,63 – 1,0) 0,97 (0,8 - 1,0) 0,98 (0,8 - 1,0)

Results (n=65) RMS error (Z 5,0mm) SA Akreos AO MI60® Clariflex® Tecnis Z9002® RMS error (Z 5,0mm) 0,22 ±0,05 SD 0,19 ±0,09 SD 0,15 ±0,05 SD SA 0,11 ±0,06 SD 0,17 ±0,06 SD -0,02 ±0,05 SD

Comparison p<0,0001

Contrast sensitivity Akreos AO MI60® Tecnis Z9002® Clariflex® p>0,05 p<0,0001 p<0,0001 Akreos AO MI60® Tecnis Z9002® Clariflex®

Conclusion We have found statistically significant difference in postoperative measured HOA and spherical aberration between our groups. Results of the examination of contrast sensitivity show that aspheric and aberration free intraocular lenses are significantly better than spherical lenses. These results between aspherical IOL and aberration free IOL was not found statistically significant. We did not find any statistically significant difference in our results of postoperative BCVA.