An authorization for the provision of glasses and/or contact lenses to a patient. An authorization for the provision of glasses and/or contact lenses to a patient. If the element is present, it must have either a @value, an @id, or extensions A unique identifier assigned to this vision prescription. Plan/proposal/order/request fulfilled by this prescription. A shared identifier common to all Vision Prescriptions that were authorized more or less simultaneously by a single author, representing the composite or group identifier. The status of the resource instance. Indicates how quickly the vision prescription should be addressed with respect to other requests. The date this resource was created. A resource reference to the person to whom the vision prescription applies. A reference to a resource that identifies the particular occurrence of contact between patient and health care provider during which the prescription was issued. The date (and perhaps time) when the prescription was written. The healthcare professional responsible for authorizing the prescription. Contain the details of the individual lens specifications and serves as the authorization for the fullfillment by certified professionals. An authorization for the provision of glasses and/or contact lenses to a patient. Identifies the type of vision correction product which is required for the patient. The eye for which the lens specification applies. Lens power measured in dioptres (0.25 units). Power adjustment for astigmatism measured in dioptres (0.25 units). Adjustment for astigmatism measured in integer degrees. Allows for adjustment on two axis. Power adjustment for multifocal lenses measured in dioptres (0.25 units). Contact lens power measured in dioptres (0.25 units). Back curvature measured in millimetres. Contact lens diameter measured in millimetres. The recommended maximum wear period for the lens. Special color or pattern. Brand recommendations or restrictions. Notes for special requirements such as coatings and lens materials. An authorization for the provision of glasses and/or contact lenses to a patient. Amount of prism to compensate for eye alignment in fractional units. The relative base, or reference lens edge, for the prism. Up Down In Out If the element is present, it must have either a @value, an @id, or extensions Right Eye Left Eye If the element is present, it must have either a @value, an @id, or extensions