Table 1.

Baseline health state distribution

Health state	Proportion at baseline (%)
HS1: moderate VI	23
HS2: severe VI	32
HS3: profound VI	23
HS4: CF	19
HS5: HM, LP, NLP	3

CF counting fingers, HM hand motion, HS health state, LP light perception, NLP no light perception, VI visual impairment