4. For the purposes of this Regulation, a visual aid is a visual aid that is intended for a person with a visual deficiency and that is designed to compensate for the disabilities resulting from that deficiency.
A visual aid may have components, which are its constituent parts, as well as supplements, each of which consists in an accessory that is both necessary to improve the operation of the visual aid and required for permanent use.
O.C. 1403-96, s. 4; O.C. 470-2011, s. 25.