Visual Performance And Patient Satisfaction Following Implantation Of A Wavefront Linking Presbyopia Correcting Intraocular Lens

To report the visual and refractive outcomes and patient satisfaction following implantation of a wavefront linking presbyopia-correcting intraocular lens (IOL) during cataract surgery.

Ayrshire Eye Clinic, Ayr, Scotland, UK

Prospective, interventional case series. 108 eyes of 60 patients underwent implantation of a wavefront linking IOL (ELON, Medicontur, Hungary) during cataract surgery by a single surgeon (SS). Monocular and binocular uncorrected visual acuities at distance (UDVA), intermediate (UIVA, 66 cms), and near (UNVA, 40 cms) and contrast sensitivity were collected at months 1, 3, 6, and 12. Defocus curves were measured at month 3. All subjects completed a VFQ – 25 questionnaires to assess their quality of vision.

Mean binocular uncorrected visual acuity was -0.02 logMAR for distance, 0.10 logMAR for intermediate, and 0.21 logMAR for near vision. Binocular distance-corrected visual acuities were -0.04 logMAR for distance, 0.05 logMAR for intermediate, and 0.17 logMAR for near vision. The IOLs achieved binocular photopic distance-corrected depth of focus at the 0.2 logMAR threshold, ranging from 0.8D to -2.7D. Postoperatively, 96.6% of eyes demonstrated residual spherical refraction between -0.5D and 0.5D, and 79.3% had residual cylinders in the same range. Patient satisfaction as measured by the VFQ-25 exceeded 90% for both near and distance activities.

Implantation of a wavefront linking presbyopia-correcting IOL provides stable refractive outcomes over time for distance, intermediate, and near vision. Subjects also reported high levels of spectacle independence for distance and intermediate with low levels of visual disturbances when assessed with a standardised visual function questionnaire.