Comparisons of visual functioning and Rasch scores between subjects with bilateral and unilateral cataract surgery, taking into account the presenting visual acuity of the fellow eye
| Unilateral cataract surgery with | Unilateral cataract surgery with | ||||||||
| Bilateral cataract surgery (n=151) | Minimal cataract in fellow eye (n=43) | p Value* | Significant cataract in fellow eye (n=87) | p Value* | Presenting visual acuity better than 6/12 in fellow eye (n=37) | p Value* | Presenting visual acuity worse than or equal to 6/12 in fellow eye (n=93) | p Value* | |
| Mean Rasch score (95% CI) | 3.38 (3.17 to 3.58) | 3.39 (3.02 to 3.77) | 0.941 | 2.99 (2.72 to 3.25) | 0.021 | 3.72 (3.37 to 4.07) | 0.083 | 2.88 (2.61 to 3.16) | 0.006 |
| Adjusted mean Rasch score (95% CI)† | 3.25 (2.99 to 3.50) | 3.22 (2.78 to 3.66) | 0.897 | 2.81 (2.46 to 3.16) | 0.019 | 3.38 (2.94 to 3.82) | 0.456 | 2.78 (2.41 to 3.14) | 0.018 |
Data are presented as mean (SD) or number (%), as appropriate.
↵* p Value to test for difference between bilateral cataract surgery (common) compared unilateral cataract surgery with a minimal cataract in fellow eye, significant cataract in fellow eye, presenting visual acuity worse than or equal to 6/12 and presenting visual acuity better than 6/12 in fellow eye respectively, based on either a t test or χ2 test, as appropriate.
↵† Adjusted for age, gender, cardiovascular disease, current cigarette smoking status, low socioeconomic status and the presence of eye diseases (including age-related macular degeneration, diabetic retinopathy and glaucoma).