Indiana Code Title 12. Human Services § 12-7-2-21

(1) For purposes of the following statutes, the term refers to an individual who has vision in the better eye with correcting glasses of 20/200 or less, or a disqualifying visual field defect as determined upon examination by an ophthalmologist or optometrist who has been designated to make such examinations by the county office and approved by the division of family resources or by the division in the manner provided in any of the following statutes:

(2) For purposes of the following statutes, the term refers to an individual who has a central visual acuity of 20/200 or less in the individual's better eye with the best correction or a field of vision that is not greater than twenty (20) degrees at its widest diameter: