Where an optometrist or ophthalmic medical practitioner tests the sight of a patient, he or she must perform, for the purpose of detecting signs of injury, disease or abnormality in the eye or elsewhere:an examination of the external surface of the eye and its immediate vicinity; an intra-ocular examination, either by means of an ophthalmoscope or by such other means as he or she considers appropriate, andsuch additional examinations as appear to the optometrist or ophthalmic medical practitioner to be clinically necessary.The following...