S.D. Codified Laws § 20-13-10.1
No person may refuse to hire a person, discharge an employee, or accord adverse or unequal treatment to any person or employee with respect to the application, hiring, training, apprenticeship, tenure, promotion, upgrading, compensation, layoff, or any term or condition of employment because of their blindness or partial blindness unless specific vision requirements constitute demonstrated and bona fide occupational qualifications necessary for effective work performance and that person's blindness or partial blindness is related to the person's ability to perform the duties of a particular job or position. Nothing in this section requires an employer to provide any more than reasonable accommodations for a person's blindness or partial blindness. For the purpose of this section, blindness or partial blindness means legally blind which is 20/200 or less in the better eye with correction or where the field of vision subtends an angle of less than twenty degrees. A violation of this section is punishable by a civil penalty of not more than one thousand dollars.
SDCL 20-13-10.1