Clinical experience with Tetraflex HD IOL

Session Details

Session Title: New IOL Optic Design

Session Date/Time: Tuesday 17/09/2019 | 16:30-18:00

Paper Time: 17:43

Venue: Free Paper Forum: Podium 1

First Author: : A.Janekova CZECH REPUBLIC

Co Author(s): :    R. Zugar   J. Pasta   M. Janek                       

Abstract Details

Purpose:

To evaluate visual outcomes, predictability, time progress of visual acuity and ease of performing daily tasks in patients following implantation of extended depth of focus Tetraflex HD lens

Setting:

Eye Centre Prague, Prague, Czech Republic

Methods:

A prospective study evaluate 80 eyes of 40 patients. The Tetraflex HD lens was implanted in patients with no cornea, retina or optic nerve pathology and in eyes with no previsous refractive surgery. Corneal astigmatism up to 1 cylinder was accepted. Patients were evaluated preoperatively for uncorrected and best corrected distance visual acuity. Postoperatively patients were evaluated in 1 day, 1 month, and 6 month after the surgery for distance, intermediate (66cm) and near visual acuity. Defocus curve was done at the 6 month follow up. A satisfaction questionnaire was administered to patients 6 months after the surgery.

Results:

All patients in this cohort experienced improvements in vision. 82% of the eyes were within ± 0.5D of the attempted spherical correction using SRK-T formulas and A constant of 118,57. At six-month follow-up the monocular uncorrected distance visual acuity (UCDVA) was 0,98 (±0,1), the uncorrected intermediate visual acuity (UCIVA) was 0.74 (± 0,18) and uncorrected near visual acuity (UCNVA) was 0,48 (±0,15). The photopic monocular defocus curve six months postoperatively shows a continuous range of vision (visual acuity above 0.1 logMAR) from 0 D to – 1,5 D defocus which corresponds to distance to 60 cm.

Conclusions:

Patients receiving Tetraflex HD in current study attained excelent visual outcomes for distances, intermediate and social near distance. Tetraflex HD is beeing implanted at our clinic more than 6 years. According to our own experience as well as international clinical experience with near vision of Tetraflex HD IOL the term extended depth of focus lens would be more appropriate for Tetraflex HD than the original term which is accommodative lens.

Financial Disclosure:

None