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Transition probability matrix for initial phase—BSC arm
| Health state at 1 year | |||||
|---|---|---|---|---|---|
| HS1 (%) | HS2 (%) | HS3 (%) | HS4 (%) | HS5 (%) | |
| Health state at baseline | |||||
| HS1 | 100 | 0 | 0 | 0 | 0 |
| HS2 | 25 | 50 | 0 | 25 | 0 |
| HS3 | 0 | 0 | 100 | 0 | 0 |
| HS4 | 0 | 0 | 100 | 0 | 0 |
| HS5 | 0 | 0 | 0 | 100 | 0 |
Key: HS1, moderate visual impairment; HS2, severe visual impairment; HS3, profound visual impairment; HS4, counting fingers; HS5, hand motion, light perception to no light perception
