Eyeworld

EW INTERNATIONAL 112 October 2016 logMAR for both IOLs. The contrast sensitivity was consistently normal for the group of age. The aberration study showed higher corneal coma in the toric group, but no increase of corneal coma by the internal eye optics in both groups. Conclusion: The combination of trifocality and toricity resulted in clinically beneficial outcomes both for visual acuity and for ocular aberration. For patients with regular astigmatism the possibility of specta- cle independence with no additional risk with respect to a trifocal IOL is enlarged. Dr. Malyugin: Trifocal IOLs are very popular across Europe, and there is a clear trend of their increasing use in many countries all over the world where they are available. There is a definite advantage of having the third focus resulting in improved vision at the intermediate distance. Apart from that there is approximately 4% less light energy lost. Not surprisingly, the next technological step was in combining toricity and multifocality. The design of this lens is very specific—the so- called "double C-loop." I was pleased to know that the lens was quite stable (mean rotation 5.35±3.65 degrees), and clinical results achieved after bilateral implantation showed distinct advan- tages of these lenses over the "regular" trifocals in patients with cataract and astigmatism. Clinical experience with a bioanalogic polyfocal IOL Sheraz Daya, MD, Marcela Espinosa, MD Purpose: To evaluate the refractive outcomes, quality of vision, and visual outcomes at distance, inter- Clinical and optical evaluation of a new trifocal toric IOL Roberto Bellucci, MD Purpose: To demonstrate that the addition of toricity to a trifocal IOL is not detrimental to the distance, near, and intermediate visual acuity and to the ocular aberration. Methods: This study consists of a non-randomized controlled trial evaluating the maintenance of visu- al acuities of a new trifocal toric IOL with respect to the non-toric parent one. Two groups of 11 patients were bilaterally implanted with a trifocal (group 1) or a trifocal toric IOL (group 2) depending on their corneal topography. The two IOLs have the exact same design except there is a toric cylinder added on the posterior surface of the trifocal toric IOL. The monocular visual acuities at far, intermediate, and near were first assessed. The refraction, con- trast sensitivity, binocular defocused curve, and optical aberration were also measured. Results: Preoperative corneal astig- matism was 0 to 1.28 D in group 1 and 1.17 to 3.87 D in group 2. The monocular uncorrected visual acuity for far, intermediate, and near, respectively, was: 0.21±0.16, 0.21±0.10, 0.19±0.14 logMAR in group 1, and 0.17±0.13, 0.26±0.20, 0.20±0.16 logMAR in group 2 (p>0.05). The postoperative sphere and cylinder, respectively, were: 0.05±0.54 and –0.26±0.55 in group 1, and 0.07±0.67 and –0.44±0.61 in group 2 (p>0.05). Both the defocus curves and the contrast sensitivity showed no statistical difference and presented exactly the same pattern. The defocus curve was not below 0.2 Boris Malyugin, MD, Moscow, highlighted the best international papers at the "Best of ASCRS" session at the 2016 ASCRS•ASOA Symposium & Congress. The papers were chosen from the Best Paper of Session winners. Here are the abstracts from the studies, with Dr. Malyugin's comments regarding selection. The session was moderated by Eric Donnenfeld, MD, with panelists Reay Brown, MD, Clara Chan, MD, David F. Chang, MD, and Dr. Malyugin. Best of ASCRS: Scan to watch video!

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