This unit describes the skills and knowledge required to interpret prescriptions, support the selection of advanced optical appliances, fit and adjust advanced optical appliances to meet individual client needs, and provide advice on their use and care. Advanced optical appliances include single vision aspheric lenses, multifocal bifocal and trifocal lenses, progressive lenses and degressive lenses. The unit does not include highly specialised dispensing for atypical prescriptions or complex optical corrections. This unit applies to optical dispensers who work according to prescriptions provided by optometrists and ophthalmologists. The skills in this unit must be applied in accordance with Commonwealth and State/Territory legislation, Australian/New Zealand standards and industry codes of practice. No licensing, legislative or certification requirements apply to this unit at the time of publication.