A person is legally blind, if his / her field of vision is 20 degrees, while his / her visual acuity is below than

1
6 / 6 in the better eye with best possible corrections.
2
6 / 7 in the better eye with best possible corrections.
3
6 / 30 in the better eye with best possible corrections.
4
6 / 60 in the better eye with best possible corrections.

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