Horizontal Peripheral Vision Screening Temporal Requirements

PURPOSE: This rule establishes the horizontal peripheral vision requirements necessary to receive a Missouri driver license. (1) In addition to the visual acuity standards required by Missouri statutes and rules, as stated in 12 CSR 10-24.090, the director shall require any person applying for a driver license to submit to a screening of their horizontal peripheral field of vision by an objective quantitative visual field instrument. (2) If an applicant has a fifty-five degree (55°) or better temporal horizontal peripheral vision in each eye, they shall receive a license with no additional restrictions. (3) If an applicant has less than fifty-five degree (55°) temporal horizontal peripheral vision in one (1) eye and at least eightyfive degree (85°) temporal horizontal peripheral vision in the other eye, they shall receive a license with the following restriction: (A) If the applicant’s right eye has less than fifty-five degree (55°) temporal horizontal peripheral vision, a right outside rearview mirror shall be required; and (B) If the applicant’s left eye has less than fifty-five degree (55°) temporal horizontal peripheral vision, a left outside rearview mirror shall be required. (4) If an applicant has less than fifty-five degree (55°) temporal horizontal peripheral vision in one (1) eye and less than eightyfive degree (85°) temporal horizontal peripheral vision in the other eye, they shall be referred to an eye doctor or physician of their choice for screening of the applicant’s horizontal peripheral vision by an objective quantitative visual field instrument and shall receive a conditional license with the following restrictions: (A) Daylight driving only; and (B) Restricted to forty-five miles per hour (45 mph). 1. At the discretion of the department, either of the two (2) restrictions listed in subsections (4)(A) and (B) may be removed or waived from the driver license if an eye doctor or physician recommends removal. 2. A specific driving radius may be required if a registered optometrist or physician recommends this restriction. (5) Any applicant with a combined horizontal peripheral vision reading of less than seventy degree (70°) shall be denied a Missouri driver license. (6) Horizontal peripheral field of vision readings completed by an eye doctor or physician are valid for one (1) year from date of eye examination. AUTHORITY: sections 302.175 and 302.301, RSMo 2016.* Original rule filed Oct. 1, 1987, effective March 11, 1988. Amended: Filed Dec. 11, 1991, effective April 9, 1992. Amended: Filed Dec. 15, 1998, effective June 30, 1999. Amended: Filed Aug. 15, 2023, effective March 30, 2024. *Original authority: 302.175, RSMo 1965, amended 1987, 1989, and 302.301, RSMo 1951, amended 1989, 1996.