South Carolina Code 43-25-20. “Blindness” and “severe visual disability” as criteria for acceptance for services for persons who qualify
(1) "Blindness" is defined as that level of central visual acuity, 20/200 or less in the better eye with correcting glasses, or a disqualifying field defect in which the peripheral field has contracted to such an extent that the widest diameter of visual field subtends an angular distance no greater than twenty degrees and which is sufficient to incapacitate him for self-support, or an eighty per cent loss of visual efficiency resulting from visual impairment in more than one function of the eye, including visual acuity for distance and near, visual fields, ocular, mobility, and other ocular functions and disturbances.
(2) "Severe visual disability" is defined as any progressive pathological condition of the eye or eyes supported by acceptable eye examination, which in the opinion of the examiner may or will result in legal blindness within twenty-four months.