
How is “blind” defined for the purposes of calculating my standard deduction?
If you or your spouse are blind, you can claim a greater standard deduction than you would otherwise be entitle to. This includes full blindness as well as partial blindness. In order for your (or your spouse’s) partial blindness to qualify, your vision must be no better than 20/200 with corrective lenses or you must have a field of vision of 20 degrees or less.