Abstract
Purpose
To evaluate visual performance after implantation of a new diffractive aspheric multifocal intraocular lens (MIOL) with a +3.50 D addition power.
Methods
A total of 24 cataract patients were bilaterally implanted with the Diffractiva-aA MIOL in 2 ophthalmologic centers and followed for 6 months. Postoperative evaluations included visual acuities (VA) at various distances, defocus testing, contrast sensitivity (CS) measurements, and patient satisfaction questionnaire.
Results
Six months postoperatively, binocular uncorrected VA (mean ± SD; logMAR) was 0.00 ± 0.05 (≍20/20) for distance, 0.06 ± 0.13 (≍20/23) for intermediate (1 m), and 0.00 ± 0.05 (≍20/20) for near (40 cm). All patients achieved uncorrected VA of 20/25 or better for distance and near, and 20/40 or better at 1 m. Monocular and binocular defocus curves showed 2 peaks of maximum VA at the distance focus (0.0 D) and the near focus (-2.5 D) and a good range of intermediate vision with the lowest mean acuity being at -1.5 D defocus. Photopic and mesopic CS were within the standard normal range. The majority of patients (n = 22; 91.7%) were spectacle independent; 8.3% (n = 2) reported wearing glasses occasionally for very small print (1 patient) or for watching television (1 patient). Overall, all patients were “very satisfied” (n = 22; 91.7%) or “satisfied” (n = 2; 8.3%) with the procedure.
Conclusions
The new Diffractiva-aA MIOL provided a full range of vision from near to far generating highly satisfied, spectacle independent patients with only minimal visual disturbances at night.
Get full access to this article
View all access options for this article.