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Visual results with an aspheric trifocal diffractive lens

Poster Details

First Author: C.Lisa SPAIN

Co Author(s):    J. Alfonso   J. Blázquez   R. Montés-Micó        

Abstract Details


To evaluate the predictability, safety and efficacy of the AT LISA (IOL; Carl Zeiss Meditec AG) trifocal intraocular lenses (IOL) for near and distance visión with mínimum follow-up of 3 months.


Instituto Oftalmológico Fernández-Vega. Oviedo. Spain.


Clinic, prospective, non-randomized study that includes records from 99 eyes of 57 patients implanted with an AT LISA Trifocal IOL. 58% of the simple were females and 42% males. Mean age at the time of surgery was 57.5 ± 8.6 years (Rnge from 38 to 77) and the mean refractive error was -0.15 ± 4.01 diopters (D) (range -19.00 to +5.25). All eyes had a previous astgmatism lower than one dioptre. Near and distance visual acuity (VA) and other refractive parameters were recorded preoperatively and at three months from the surgery.


Three months after surgery the sphero-equivalent had diminished from 0.07 ± 4.00 D (range from -18.75 to +5.75) to 0.02 ± 0.29 D (range from de -1.00 tp 0.75), where more than 80% of the eyes were in ± 0.25 D and 95% of the eyes were in ±0.50 (r2=0.99). The VA with distance correction (DCVA) was 0.95 ± 0.11. 70 eyes (71%) had a DCVA equal to or greater than 1.0 and 98 eyes (99%) equal to or greater than 0.5. The safety index calculated at three months was 1.1 ± 0.14. regarding the near vison, both the monocular uncorrected distance visual aquity (UDVA) and monocular DVCA were satisfactory, being their means 0.73 ± 0.19 and 0.74 ± 0.22 respectively. Those results were even better at the binocular evaluation with a mean of 0.89± 0.22 and 0.92 ± 0.21 respectively with and without correction. None of the eyes lost more than a line of DCVA, 13 eyes (13.1%) lost one line and 35 eyes (35%) gained at least 1 line. No intraoperative complications were reported.


The predictability, safety and effeLos resultados de predictibilidad, seguridad y effectiveness of the Trifocal AT LISA lens were good in distance and near vision during the follow-up. These results suggest that the lens is a good choice for lensectomy programmed with refractive purpose. FINANCIAL INTEREST: NONE

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