Subsequent cataract surgery | ||||
---|---|---|---|---|
Parameter | All participants | First eye only | Both eyes | None |
Participants | 409 | 158 | 188 | 63 |
Demographic characteristics | ||||
Age (years), mean (SD) | 75.4 (5.4) | 75.0 (5.8) | 75.9 (5.3) | 75.3 (4.7) |
Sex (women) | 220 (54%) | 83 (53%) | 99 (53%) | 39 (62%) |
Health status | ||||
Comorbid conditions (FCI), mean (SD) | 4.38 (2.30) | 4.42 (2.43) | 4.18 (2.14) | 4.87 (2.32) |
Medication used, mean (SD) | 4.67 (3.78) | 4.91 (4.51) | 4.24 (3.23) | 5.35 (3.18) |
Five or more medications used | 170 (42%) | 65 (43%) | 71 (39%) | 35 (56%) |
Antidepressants used | 43 (11%) | 16 (11%) | 19 (11%) | 8 (13%) |
Vision status | ||||
Binocular habitual visual acuity (logMAR), mean (SD) | 0.27 (0.21) | 0.23 (0.19) | 0.32 (0.22) | 0.21 (0.20) |
Binocular contrast sensitivity (log units), mean (SD) | 1.48 (0.21) | 1.48 (0.20) | 1.47 (0.22) | 1.50 (0.21) |
Anisometropia ≥ 1.00 dioptre | 198/375 (53%) | 85/141 (60%) | 86/173 (50%) | 27/61 (44%) |
Moderate stereopsis (140 seconds of arc) | 146/409 (36%) | 58/158 (37%) | 63/188 (34%) | 25/63 (40%) |
Physical function | ||||
Weekly activity (hours), mean (SD) | 44.1 (24.8) | 45.4 (24.8) | 44.2(24.2) | 40.2 (26.5) |
Physical function (SPPB score), mean (SD) | 8.68 (2.59) | 8.91 (2.67) | 8.79 (2.50) | 7.80 (2.51) |
Gait speed (m/s), mean (SD) | 0.95 (0.42) | 0.98 (0.31) | 0.94 (0.53) | 0.89 (0.30) |
Standing balance (seconds), mean (SD) | 50.8 (12.0) | 50.4 (12.3) | 51.8 (11.6) | 48.8 (12.0) |
Sit‐to‐stand (stands per second), mean (SD) | 0.37 (0.52) | 0.36 (0.17) | 0.40 (0.74) | 0.29 (0.16) |
FCI = functional comorbidity index; logMAR = logarithm of the minimum angle of resolution; SPPB = Short Physical Performance Battery; SD = standard deviation.
Missing data (first eye surgery only/first and second eye surgery/no surgery): date of birth (0/0/2 participants), height/weight (3/1/0), total medications (7/5/1), auto‐refraction of either eye (34/0/0), bilateral contrast sensitivity (0/0/2), gait velocity (1/3/2), standing balance (4/2/1), sit‐to‐stand (7/7/2), weekly activity hours (1/0/0).