Visual Outcomes Of Cataract Patients After Implantation With Toric And Non-Toric Enhanced Monofocal Intraocular Lenses In A Real-World Setting In The Uk

To investigate clinical outcomes obtained from patients who had RayOne EMV (Rayner) intraocular lenses (IOL) implanted after cataract removal. These IOLs have a non-diffractive optic that provides patients with a high-quality vision together with monofocal levels of contrast sensitivity and dysphotopsia. This is an essential feature which provides an extra safety advantage for surgeons who would like to provide correction of presbyopia in their practice but fear the drawback of dysphotopsia and glare at night driving. These drawbacks may arise from the use of multifocal and diffractive extended depth of fraction (EDOF) intraocular lenses.

Retrospective single centre study.

Data were available preoperatively and postoperatively and were collected over a period of 14 months. They included monocular and binocular uncorrected distance visual acuity (UDVA) and monocular and binocular uncorrected near visual acuity (UNVA). Presence of dysphotopsia was also assessed based on clinical signs reported by patients.

The analysis included 121 eyes from 75 patients, ages ranging from 57 to 86 years old, who had either bilateral or unilateral implantation with RayOne EMV IOLs. Follow-up time was 8-12 weeks after surgery. The target refraction for the non-dominant eye ranged between -0.5D to -0.75D while the target for the dominant eye was to achieve emmetropia. Mean monocular UDVA of the non-dominant and dominant eye were 0.3 and 0.1 logMAR, respectively. The percentage of patients achieving a binocular UDVA of 0.1 logMAR or better was 90%. Mean monocular UNVA of the non-dominant and dominant eye were N8 and N12, respectively, and 60% of patients could achieve N6 or better with both eyes. Only 2 out of the 75 patients reported dysphotopsia.

Clinical outcomes obtained with the RayOne EMV IOL, including RayOne EMV Toric, show good visual acuity for distance and near vision and provide a good opportunity for patients to achieve spectacle independence without dysphotopsia. The lenses are very forgiving and show a promising future in the subject of cataract surgery.