LAUSR

PURPOSE To compare the visual disturbances experienced by patients receiving one of three extended depth of focus IOLs or a monofocal IOL as control. SETTING Spain. DESIGN Prospective, comparative, randomized double-blind study. METHODS 22 patients were included per group. The lenses evaluated were the AcrySof IQ Vivity (Group Vivity), AT LARA 829MO (Group AT Lara) or TECNIS Symfony ZXR00 (Group Symfony), and the monofocal Acrysof IQ SN60WF (Group Monofocal). The variables analyzed were the light distortion index (LDI), best-fit circle radius (BFCRad) and self-reported vision quality with a questionnaire (QoV). Outcomes were evaluated at 3 month follow up visit. RESULTS Under monocular conditions, no differences between groups were detected for the LDI and BFCRad. Under binocular conditions, significant differences in both variables were produced. Monofocal group reported better values than Symfony (p= 0.025; p=0.024) and AT Lara (p=0.002; p=0.002) groups. Vivity group reported better values than Symfony (p=0.015; p=0.014) and AT Lara® (p=0.001; p=0.001) groups. Halos were never reported by 81.8% (18) of patients receiving the Vivity IOL and neither were halos noted by over 90% (20) of patients implanted with the monofocal lens, while 50% (11) of patients fitted with AT Lara and around 60% (13) of those with Symfony did not perceive them. CONCLUSIONS The diffractive extended depth of focus IOL models examined in this study induced similar visual disturbances, which were nevertheless worse than those produced by the non-diffractive extended-range model and the monofocal one. The non-diffractive lens and the monofocal one, did not show differences.