VISUAL PERFORMANCE AND STABILITY OF A NOVEL CAPSULORRHEXIS-FIXATED INTRAOCULAR LENS

To evaluate the refractive results and positional stability of a new model of capsulorrhexis-fixated intraocular lens (IOL).

Ophthalmology Department, Hospital Universitario Donostia

This prospective study evaluates 20 eyes of 10 patients who underwent implantation of an extended depth of focus (EDOF) capsulorrhexis-fixated IOL (FEMTIS FB-313 MF15) following femtosecond laser assisted cataract surgery. Visits were performed on day 1, 30 and 180 after surgery. The mean outcomes measures were non corrected distance, intermediate and near visual acuities (UDVA, UIVA and UNVA respectively), corrected distance, intermediate and near visual acuities (CDVA, CIVA, CNVA respectively), spherical equivalent and the position of the IOL in relation to the capsulorrhexis. Quality of vision was assessed using the VFQ-25 questionnaire.

180 days after surgery, binocular UDVA, UIVA and UNVA were 0,00 ± 0,00 (SD), 0,14 ± 0,13 and 0,27 ± 0,22 logMAR respectively. No statistically significant differences were found in UDVA and CDVA between 30 and 180 days after surgery. Mean spherical equivalent (SE) at the last visit was 0,19 ± 0,5 diopters (D). 72,22% of the eyes had an SE between -0,5 and +0,5 D and 100% between -1,0 D and 1,0 D. All the implanted IOLs remained correctly centered and positioned at the level of the anterior capsule at all visits. Distance between the posterior iris surface and the IOL was 317,12 ± 73,20 microns, there was no correlation for this distance and visual acuity. Posterior capsular opacification was not observed. VFQ-25 questionnaire revealed a mean score of 92,57 ± 7,02.

This novel capsulorrhexis-fixated EDOF IOL (FEMTIS FB-313 MF15) achieved satisfactory visual and refractive outcomes while offering a good positional stability. In addition, this model could be an excellent design to develop future IOLs.