On form 1040 you get an exemption for being Legally Blind. My left eye meets that description. I cannot read with it because of central vision loss. My right is is not quite that bad because I can read with it and the visual field is not small enough to meet the Legally Blind standard. I am not an authority on just what standard applies.
The California form 540 gives an exemption for being Visually Impaired. So far I have no clue as to what that entails. Certainly I am impaired because I would be stupid to attempt getting a Driver's License and the State would be imperiling the Public if I were given one.
TurboTax does not distinguish between Legally Blind and Visually Impaired. Nevertheless, I think I can override the entry on form 540.
Does the readership here have any further enlightenment?