Edof Performance With A Diffractive Bifocal Lens In Post Myopic Lasik
Published 2024 - 42nd Congress of the ESCRS
Reference: PO569 | Type: Free paper | DOI: 10.82333/jqh0-es67
Authors: Belén Alfonso Bartolozzi* 1 , Luis Fernández-Vega Cueto-Felgueroso 1 , Carlos Lisa 1 , Rosa Alvarado-Villacorta 1 , David Madrid-Costa 2 , Jose F. Alfonso 1
1Cornea and Lens,Fernandez-Vega University Institute,Oviedo,Spain, 2Optica y Optometría,Universidad Complutense de Madrid,Madrid,Spain
Purpose
Evaluate the clinical performance of a diffractive bifocal lens in patients with post-laser in situ keratomileusis (FemtoLASIK) patients who underwent cataract surgery.
Setting
Fernández-Vega Eye Institute, Oviedo, Spain
Methods
+3.25 D add TECNIS ZLB00 (Johnson & Johnson Vision) intraocular lens, and AT LISA® 809M (Zeiss) are classified as a bifocal lens with a non-apodized diffractive optical design. The clinical study includes a sample of 44 patients (88 eyes) who underwent femtosecond laser assisted lensectomy. The inclusion criteria were: age between 45 and 75 years, axial length more than 25 mm, and patients with previous LASIK to correct myopia. Distance visual acuity, defocus curve and degree of satisfaction were analyzed.
Results
In the clinical study, at 3 months, the mean corrected distance visual acuity (CDVA) was 0.82 ± 0.14 (Snellen scale) and 90% of the eyes had a spherical equivalent between ±0.75 D. The mean binocular CDVA at 66, 50, and 40 cm (defocus curve) was 0.8, 0.8, and 0.85, respectively. Contrast sensitivity (Optec-6500) was within normal limits. In the vision quality questionnaire (Catquest-9SF), 95% of the patients reported being quite satisfied or very satisfied with their vision.
Conclusions
In the clinic, a defocus curve is obtained with a binocular CDVA always greater than 0.8, from the far focus to the near focus (40 cm).