Visual acuity (VA), expressed as logMAR, in better and worse eyes, together with the prevalence of visual impairment in the study group of children treated for ROP
| VA better eye/binocular* | Mean (SD) | 0.23 (0.24) |
| Median | 0.16 | |
| Range | 0–1.49 | |
| N | 204 | |
| VA worse eye* | Mean (SD) | 0.36 (0.36) |
| Median | 0.22 | |
| Range | 0–1.7 | |
| N | 185 | |
| Visual Impairment† | N (%) | |
| None: ≤0.3 | 167 (74.2) | |
| Minor: >0.3 to 0.5 | 26 (11.5) | |
| Moderate: >0.5 | 32 (14.2) |
*Only VA assessed with optotype included.
†In 225 of 232 children.
logMAR, logarithm of the minimal angle of resolution; ROP, retinopathy of prematurity.