| Deterioration of visual acuity | Low vision, both eyes | Low vision, one eye | Low vision, one eye, not otherwise specified | Low visual acuity | One eye: moderate vision impairment |
| other eye: near-normal vision | One eye: moderate vision impairment |
| other eye: normal vision | One eye: moderate vision impairment |
| other eye: vision not specified | Partial sight | Poor vision | Twilight vision | Vision decreased | Visual activity decreased | Visual acuity lost | Visual acuity reduced | Visual acuity decreased | Partial visual loss | Visual acuity reduced permanently |
