S.C. Code § 43-33-210
For the purposes of this article:
"Handicapped" shall mean any person who is visually impaired, legally blind, deaf or hearing-impaired, has a disability of incoordination or palsy resulting from brain, spinal or peripheral nerve damage, has an amputation of upper extremities, or is otherwise disabled in such a way as to interfere with his ability to use written or visual material.
"Visually impaired" shall mean any person with a visual acuity not exceeding 20/70 to 20/200 in his better eye with correcting lenses.
"Legally blind" shall mean any person with a visual acuity not exceeding 20/200 in his better eye with correcting lenses, or with a limitation in the field of vision such that the widest diameter of his visual field subtends an angle not greater than twenty degrees.
"Test" shall mean any written psychometric instrument designed to measure the aptitude, achievement or intelligence of a person being screened for employment or promotion.
"Agency" shall mean any State agency, department or institution.
S.C. Code § 43-33-210