Comparison Of Vision, Spectacle Independence And Patient Satisfaction With Micro-Monovision Implantation Of Two Aspheric Intraocular Lenses (Iols) In The Public Health Sector: Preliminary Results Of A Prospective Randomised Controlled Study.

To compare the visual outcomes, spectacle independence and patient satisfaction of bilateral implantation of either monofocal plus IOLs (Eyhance ICB00) or standard aspheric monofocal IOLs (Alcon SN60WF), using a micro-monovision technique.

University Hospital, London, United Kingdom.

Patients with bilateral cataracts and corneal astigmatism of less than 1.50 dioptres, and no significant ophthalmic problems were randomised to receive either bilateral insertion of Alcon SN60WF or the Eyhance ICB00 IOL with micro-monovision. The refractive target of the dominant eye was 0.00 to -0.25D, with the target of the myopic eye -0.75 to -1.00D. Patients were reviewed at 2 weeks, 6 weeks and 6 months. Primary outcomes were vision, contrast sensitivity, stereoacuity and patient satisfaction.

Thirty patients were randomised to the Alcon SN60WF group (10M:20F, mean age 69.19 yrs), and thirty patients to the Eyhance ICB00 group (1M:6F, 70.98 yrs). At 6 weeks mean unaided distance vision of the emmetropic eye in the Alcon group was 0.07 logMar (-0.08 to 0.3), and 0.10 (-0.13 to 0.54) in the Eyhance group. Mean unaided near vision of the myopic eye was N 8.2 in the Alcon group (5 to 14), and N 6.7 in the Eyhance group (4 to 12) (p<0.05). In the Alcon group 70% (21 patients) used reading glasses after surgery, compared to only 20% (6 patient) of the Eyhance group (p<0.001). Defocus curves demonstrate superior depth of focus in the Eyhance group, with significant differences at -1.00 & -1.50 D defocus (P<0.05).

More patients in the Eyhance ICB00 group achieved spectacle independence for distance, intermediate and near than the Alcon group. We aim to present further data, with larger groups and 6-month follow-up data.