Bifocal visual performance, 0–10 scale | Period 1 N = 63 Mean (SD) | Period 2 N = 64 Mean (SD) | P value* |
---|---|---|---|
Near visual acuity | 0.02 | ||
-New-generation lens first | 8.1 (2.3) | 7.8 (2.2) | |
-Older-generation lens first | 7.9 (1.9) | 8.5 (1.6) | |
Distance visual acuity | 0.38 | ||
-New-generation lens first | 8.3 (2.0) | 8.2 (1.7) | |
-Older-generation lens first | 8.2 (1.6) | 8.4 (1.8) | |
Intermediate visual acuity | 0.46 | ||
-New-generation lens first | 7.4 (2.6) | 7.4 (2.3) | |
-Older-generation lens first | 7.7 (2.0) | 8.1 (2.2) | |
Global visual acuity | 0.35 | ||
-New-generation lens first | 7.7 (2.0) | 7.6 (2.0) | |
-Older-generation lens first | 7.9 (1.5) | 8.1 (2.1) | |
Distance visual field | 0.60 | ||
-New-generation lens first | 7.6 (2.2) | 7.7 (2.1) | |
-Older-generation lens first | 7.8 (1.6) | 8.1 (1.9) | |
Near visual field | 0.16 | ||
-New-generation lens first | 7.3 (2.4) | 7.2 (2.2) | |
-Older-generation lens first | 7.0 (2.0) | 7.7 (2.1) | |
Kinetic visual skills when the person is moving but the environment is still | 0.20 | ||
-New-generation lens first | 7.5 (2.2) | 7.5 (2.2) | |
-Older-generation lens first | 7.5 (1.8) | 8.1 (2.0) | |
Kinetic visual skills when the person is still but the environment is moving | 0.22 | ||
-New-generation lens first | 7.5 (2.2) | 7.6 (2.1) | |
-Older-generation lens first | 7.7 (1.7) | 8.2 (1.8) | |
Visual adaptability | 0.25 | ||
-New-generation lens first | 7.6 (2.8) | 7.7 (2.3) | |
-Older-generation lens first | 7.5 (1.9) | 8.2 (2.2) | |
Visual comfort | 0.69 | ||
-New-generation lens first | 7.6 (2.4) | 7.6 (2.1) | |
-Older-generation lens first | 7.8 (1.5) | 8.0 (2.4) |