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Refractive and visual outcomes after the implantation of a presbyopia correcting trifocal intraocular lens with optics based on elevated phase shift technology

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First Author: G.Cervantes-Coste MEXICO

Co Author(s):    A. Tapia   C. Corredor-Ortega   R. Gonzalez-Salinas   -.            

Abstract Details

Purpose:

Refractive and visual outcomes after the implantation of a presbyopia-correcting trifocal intraocular lens with optics based on elevated phase shift technology

Setting:

Association to Avoid Blindness in Mexico (Asociación Para Evitar la Ceguera en México - APEC) Hospital, Mexico

Methods:

During our prospective non-comparative study we aimed to gain initial experiences with the Liberty presbyopia-correcting IOL. Pre- and postoperative refractive and visual outcome data from 31 eyes (18 patients) were included in the analyses. Only subjects with a preoperative cylindric refraction of not more than 1.00 D were evaluated. Uncorrected and best-corrected distance (UDVA, CDVA), uncorrected intermediate (67 cm, UIVA) and uncorrected near (40 cm, UNVA) visual acuities were measured preoperatively, then one and three months postoperatively. Subjective refractions were documented in each case. Dysphotopic events and spectacle usage habits were registered postoperatively.

Results:

A significant improvement of visual acuities could be observed for all distances (<0.0001). UDVA improved from the preoperative 0.58 ± 0.43 D (mean ± SD; logMAR) to 0.16 ± 0.14 D; UIVA improved from 0.68 ± 0.13 D to 0.05 ± 0.09 D, while UNVA increased from 0.72 ± 0.13 D to 0.06 ± 0.09 D three months after surgery. The spherical equivalent refraction (SEQ) of 93% of eyes were within 1.00 D from the target refraction, emmetropia. All patients achieved spectacle independence for all distances. Dysphotopsia (glare at night) was reported by only one patient.

Conclusions:

Based on our first experiences we conclude that the Liberty 677MY presbyopia-correcting IOL is a good choice to restore vision in all distances. Refractive and visual outcomes are outstanding, and dysphotopic phenomena seem to be rare and not bothersome. All our patients are highly satisfied and spectacle independent. Nevertheless, a longer follow-up, an extended number of patients, and the application of the toric model for our astigmatic patients would be of our major future interest.

Financial Disclosure:

... research is funded, fully or partially, by a company producing, developing or supplying the product or procedure presented