Visual acuity and spectacle refraction at 4 weeks and 2 years after cataract surgery in the Auckland Cataract Study 2 year follow up subgroup (n = 98 eyes of 97 subjects)
| Subgroup at 4 weeks (n = 98) | Subgroup at 2 years (n = 98) | p Value | ||
|---|---|---|---|---|
| UAVA = unaided visual acuity; BSCVA = best spectacle corrected visual acuity; logMAR = log minimum angle of resolution; logMAR −0.1 corresponds to 6/4.8, log MAR 0.1 to 6/7.5, log MAR 0.2 to 6/9, log MAR 0.3 to 6/12, log MAR 0.6 to 6/24 and log MAR 1.0 to 6/60 Snellen equivalent; D = dioptre. | ||||
| UAVA | mean logMAR (SD) | 0.3 (0.3) | 0.3 (0.3) | 0.98 |
| range | −0.1 to 1.0 | −0.1 to 1.0 | ||
| BSCVA | mean logMAR (SD) | 0.1 (0.2) | 0.2 (0.2) | <0.0001 |
| range | −0.1 to 1.0 | −0.1 to 0.6 | ||
| Spherical equivalent (D) | mean (SD) | −0.59 (1.07) | −0.37 (1.01) | 0.04 |
| range | −4.13 to +2.38 | −3.25 to +2.87 | ||
| Astigmatism (D) | mean (SD) | −1.14 (0.77) | −1.07 (0.70) | 0.34 |
| range | −4.50 to 0.00 | −4.00 to 0.00 | ||