An authorization for the supply of glasses and/or contact lenses to a patient.

Business identifier which may be used by other parties to reference or identify the prescription.

The date (and perhaps time) when the prescription was written.

A link to a resource representing the person to whom the vision products will be supplied.

The healthcare professional responsible for authorizing the prescription.

A link to a resource that identifies the particular occurrence of contact between patient and health care provider.

Can be the reason or the indication for writing the prescription.

Deals with details of the dispense part of the supply specification.

Identifies the type of vision correction product which is required for the patient.

The eye for which the lens applies.

Lens power measured in diopters (0.25 units).

Power adjustment for astigmatism measured in diopters (0.25 units).

Adjustment for astigmatism measured in integer degrees.

Amount of prism to compensate for eye alignment in fractional units.

The relative base, or reference lens edge, for the prism.

Power adjustment for multifocal lenses measured in diopters (0.25 units).

Contact lens power measured in diopters (0.25 units).

Back curvature measured in millimeters.

Contact lens diameter measured in millimeters.

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.