Mesopic Contrast Sensitivity And Visual Outcomes After Implantation Of New Technology Extended Range Of Vision Intraocular Lens

To evaluate the visual performance and contrast sensitivity function in patients with a new presbyopia-correcting, extended range of vision intraocular lens (IOL) that uses non-diffractive design called X-WAVE technology (Acrysof IQ Vivity, Alcon Laboratories Inc, USA).

Department of Ophthalmology, Ankara University School of Medicine, Ankara, Turkey.

In this retrospective case series, the files of the patients who underwent bilateral implantation with Acrysof IQ Vivity IOL were evaluated. Uncorrected visual acuity at distance (UCDVA, 4 m), intermediate (UCIVA, 60 cm) and near (UCNVA, 40 cm), binocular contrast sensitivity functions under photopic and mesopic conditions with and without glare were measured at postoperative 1 year. Quality of vision and spectacle independence were assessed using a patient-reported visual function questionnaire.

Seven patients with the mean age of 64.7±9.4 years were included into the study. At postoperative 1 year, UCDVA were 0.0±0.0 logMAR in all patients. Mean UCIVA and UCNVA were 0.20±0.12 logMAR and 0.20±0.15 logMAR, respectively. Most of the patients (5/7) had 20/31 or better visual acuity at all three distances. Photopic contrast sensitivities in low, intermediate and high spatial frequencies were 1.59±0.11 logCS, 1.93±0.00 logCS and 1.04±0.26 logCS, whereas mesopic contrast sensitivities without and with glare were 0.25±0.11 logCS and 0.12±0.14 logCS, respectively. A low level of photic phenomena scored to be not at all/a little bothersome and spectacle independence for far and intermediate distances were reported by 85% of patients.

The Acrysof IQ Vivity IOL provided excellent distance, and functional intermediate and near visual acuities, with very rare occurrence of mild visual disturbances or spectacle dependence. Contrast sensitivity outcomes were within the normal limits for the normal population in photopic and mesopic conditions.