“contractor” means a person who has undertaken to provide general ophthalmic services and whose name is included in the ophthalmic list; “doctor” means a registered medical practitioner; … “ophthalmic medical practitioner” means a doctor whose qualifications have in accordance with regulation 4 or regulation 5 been approved as being prescribed qualifications;” … [The expression “the ophthalmic list” is defined in regulation 6 below. The expression “registered medical practitioner” is defined in theInterpretation Act 1978 .] [Regulation 3 sets out qualifications which a doctor must possess in order to be an ophthalmic medical practitioner.] “… 4(1) A doctor who wishes to establish his status as an ophthalmic medical practitioner shall apply to the Ophthalmic Qualifications Committee for approval of his qualifications and shall give to it such particulars of his qualifications as it shall require. (2) The Ophthalmic Qualifications Committee shall consider and determine the doctor’s application and within two months after the date of the application shall inform him of the Committee’s determination. (3) If the Ophthalmic Qualifications Committee is satisfied that the doctor possesses the qualifications prescribed by regulation 3 , he shall be an ophthalmic medical practitioner. … 6. (1) The Committee shall keep a list called “the ophthalmic list” of those persons who, pursuant to the provisions of regulation 7, have undertaken to provide general ophthalmic services. … 7. (1) An ophthalmic medical practitioner or optician who wishes to be included in the ophthalmic list of a Committee shall send to that Committee an application to that effect which shall indicate whether the applicant is an ophthalmic medical practitioner, a registered ophthalmic optician or a body corporate carrying on business as ophthalmic opticians and shall include: (a) an undertaking to provide general ophthalmic services and to comply with the terms of service; and (b) the information, as respects the matters mentioned in regulation 6(3), which it is proposed shall be contained in the ophthalmic list. …”
“24. Testing of Sight (1) Subject to the following provisions of this section, a person who is not a registered medical practitioner or registered ophthalmic optician shall not test the sight of another person. (2) Subsection (1) above shall not apply to the testing of sight by a person recognised by a medical authority as a medical student, if carried out as part of a course of instruction approved by that authority for medical students or as part of an examination so approved. (3) The Council may by rules exempt from subsection (1) above the testing of sight by persons training as ophthalmic opticians, or any prescribed class of such persons, in such cases and subject to compliance with such conditions as may be prescribed by the rules. (4) Any person who contravenes subsection (1) above shall be liable on summary conviction to a fine of an amount not exceeding level 4 on the standard scale.”
“… the existence of a valid contract is a bar to the remedy [of, inter alia, an order for restitution to prevent unjust enrichment].”