Short-Term Clinical Outcomes Of Cataract Surgery With Implantation Of The At.Lisa Tri Toric 939 Mp Intraocular Lens Using An Optimized Preoperative And Intraoperative Protocol

To evaluate the short-term clinical outcomes of a specific toric diffractive trifocal intraocular lens (IOL) implanted following an optimized clinical protocol in a large population

Clínica AVER, Madrid, Spain.

Retrospective analysis of 337 eyes of 231 patients (mean age, 62.2 years) undergoing cataract surgery with implantation of the trifocal diffractive IOL AT.LISA tri toric 939M/MP (Carl Zeiss Meditec, Jena, Germany). A strict and careful clinical protocol was followed, including an accurate measurement of corneal astigmatism, use of a latest generation IOL power calculator, photography-based method intraoperative control of IOL alignment and IOL reposition at 1 week postoperatively if needed. Clinical outcomes in terms of visual acuity, refraction, efficacy of astigmatic correction analysed by vector analysis and patient satisfaction were evaluated during a 3-month follow-up

A total of 82 and 98% of eyes achieved a postoperative uncorrected distance visual acuity of 0.00 and 0.10 logMAR or better, respectively. Furthermore, 99.7%, and 100.0% of eyes showed a postoperative spherical equivalent within ±0.50 D and ±1.00 D, with 97.9% of eyes having a postoperative cylinder ≤ 0.50 D. Uncorrected near and intermediate visual acuities were 0.2 logMAR or better in 89.0% and 99.1% of eyes, respectively. Mean difference vector, magnitude of error and angle of error were 0.02±0.14 D, 0.02±0.13 D and 0.11±1.18º. Patient satisfaction was refereed as high or very high by 97.6% of patients

In the current study, our results are better than those reported by previous authors implanting the same model of multifocal toric IOL thankful a very careful preoperative, intraoperative and postoperative protocol, including a comprehensive and very strict procedure for obtaining the anatomical measures required for IOL power calculations, the use of ZCALC calculator, an intraoperative photography-based control of IOL alignment, and a strict criterion for IOL rotation in the very early postoperative period. The implantation of the trifocal toric IOL evaluated following a careful clinical protocol provides an efficacious visual rehabilitation and astigmatic correction, leading to high levels of patient satisfaction