An authorization for the supply of glasses and/or contact lenses to a patient. An authorization for the supply of glasses and/or contact lenses to a patient. If the element is present, it must have either a @value, an @id, or extensions Business identifier which may be used by other parties to reference or identify the prescription. The status of the resource instance. A link to a resource representing the person to whom the vision products will be supplied. A link to a resource that identifies the particular occurrence of contact between patient and health care provider. The date (and perhaps time) when the prescription was written. The healthcare professional responsible for authorizing the prescription. Can be the reason or the indication for writing the prescription. Deals with details of the dispense part of the supply specification. An authorization for the supply 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 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 supply 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 A coded concept listing the base codes. If the element is present, it must have either a @value, an @id, or extensions Right Eye Left Eye A coded concept listing the eye codes. If the element is present, it must have either a @value, an @id, or extensions