Clinical Outcomes After Implantation Of The Rayner Rayone Emv Toric Intraocular Lens

To investigate clinical outcomes after implantation of Rayner RayOne EMV Toric (RAO210T) Intraocular lenses (IOL).

OCL Vision, London 

28 eyes of 18 patients who were implanted with the Rayner RayOne EMV Toric IOL were included. Patients were targeted for mini-monovision with the dominant eye and non-dominant eyes targeted for emmetropia and approx. -0.75 D, respectively. Preoperative and 1 month follow-up data were analyzed, including manifest refraction, monocular and binocular uncorrected distance visual acuity (UDVA), uncorrected intermediate visual acuity (UIVA) and uncorrected near visual acuity (UNVA) as well as corrected distance visual acuity (CDVA). Additionally, there was a surgeon questionnaire on intraoperative and postoperative experience as well as a patient questionnaire on satisfaction and spectacle independence.

One month postoperatively, the refractive cylinder significantly decreased from 1.87±1.05 D preoperatively to 0.49±0.52 D (p<0.001) with 89% of the eyes being ≤1.0 D. Mean monocular and binocular UDVA were 0.15±0.20 and ‑0.01±0.09 logMAR, respectively and monocular CDVA was ‑0.06±0.06 logMAR. On UIVA, monocular and binocular outcomes are 0.33±0.10 and 0.26±0.09 logMAR, respectively, whereas monocular and binocular UNVA outcomes are 0.30±0.13 and 0.21±0.08 logMAR, respectively. All IOLs were stable, centered and no rotation was observed. 100% of the patients reported no visual disturbances during day and 89% reported no disturbances during night. 64% were spectacle independent and 93% were satisfied or very satisfied with their vision.

Implantation of RayOne EMV Toric IOL was both safe and effective in patients with pre-existing corneal astigmatism. Significantly reduced refractive cylinder and good visual acuity outcomes were achieved over a wide focal range. In addition, the mini-monovision strategy led to better binocular unaided distance and reading visual acuity vs. the monocular equivalent. Surgeon and patient questionnaires revealed high IOL stability, high satisfaction and spectacle independence rates. The low rate of visual disturbances might be related to the diffractive-free optical design.