Table 1 Definition of distance visual impairment
From: An evaluation of a community-based vision care programme for the elderly
Level of distance visual impairment (VI) | Visual acuity |
|---|---|
None | 6/18 or better |
Moderate | < 6/18- 6/60 |
Severe | < 6/60- 6/120 |
Blindness | worse than 6/120 |