Visual Outcomes With The Zoe Intraocular Lens Targeting Mild Myopia In The Non-Dominant Eye

To evaluate visual outcomes following bilateral implantation of the Ophthalmo Pro Zoe Intraocular lens, targeting mild myopia in the non-dominant eye.

Southend University Hospital, Essex, United Kingdom

At 3 months post-operatively, all outcome measures were assessed at a follow up visit by an experienced optometrist in a single testing room under photopic lighting conditions (85cd/m²) using our standard post-operative visual performance protocol.Standard subjective refraction (maximum plus) was conducted. Uncorrected and best corrected distance acuity was assessed using a 6m computerised ETDRS logMAR chart monocularly and binocularly. Intermediate and near acuity were recorded using the ETDRS 70cm chart and ETDRS 40cm near charts respectively.

Monocular and binocular distance corrected defocus profiles were assessed from +1.50D to -4.00D was measured in 0.50D steps with additional points at +0.25D and -0.25D.

Manifest spherical equivalent in the dominant eye was 0.00±0.29, and the non-dominant eye was -0.63±0.65. Binocular uncorrect distance visual acuity was 0.09 ± 0.08 LogMAR, improving to 0.04 ± 0.06 with distance correction.Binocular uncorrected intermediate vision was 0.22 ± 0.11LogMAR and binocular uncorrected near acuity was 0.40 ± 0.15LogMAR. Defocus profile showed acuity <0.20LogMAR between 0.50 and -1.50D of imposed defocus. 

The Ophthalmo Pro Zoe Intraocular lens with targeted monovision is a useful strategy for achieving improved intermediate vision and lowering dependence on spectacles following cataract surgery.