Criteria for moderate visual impairment due to visual field loss
| Humphrey 24-2 threshold visual field (%* of points ≤10 dB) | ||||
|---|---|---|---|---|
| Visual acuity equivalence | Upper hemifield | Lower hemifield | ||
| *For upper hemifield 25–50%, 51–75%, and >75% are 6–13, 14–20, and >20 points, respectively, and for lower hemifield these are 6–13, 14–19, and >19 points, respectively. This table is adapted from Dandona et al.7 | ||||
| <6/18–6/30 | >75 | or | 51–75 | |
| or | 25–50 | and | 25–50 | |
| or | 51–75 | and | 25–50 | |
| or | 25–50 | and | 51–75 | |
| <6/30–6/60 | >75 | and | 25–50 | |
| or | 51–75 | and | 51–75 | |
| or | >75 | and | 51–75 | |
| or | any | and | >75 | |