Table 1 VI category definition by visual acuity* in the better eye and associated new DWs
From: The development of a public optometry system in Mozambique: a Cost Benefit Analysis
VI category | Definition | DW |
|---|---|---|
Distance mild VI | <6/12 but ≥6/18 | 0.004 |
Distance moderate VI | <6/18 but ≥6/60 | 0.033 |
Distance severe VI | <6/60 but ≥3/60 | 0.191 |
Near VI | <6/12 but ≥3/60 for near, but ≥6/12 for distance | 0.013 |