25. Where consulted by a patient, an optometrist must(1) try to gain full knowledge of the patient’s condition, needs and concerns, and the reason for the consultation;
(2) provide the patient with explanations relevant to understanding the nature, purpose, and possible consequences of the interventions the optometrist is about to undertake or that the optometrist recommends;
(3) ensure that the optometrist obtains free and enlightened consent from the patient or, where applicable, the patient’s legal representative, to intervene, except in an emergency where consent cannot be obtained; and
(4) avoid performing acts that are unwarranted from an optometric point of view, by performing them more frequently than necessary or dispensing them in an exaggerated manner.