638. Restrictions on the testing of sight.

Any person who is not a registered medical practitioner1 or a registered optometrist2, must not test the sight3 of another person4, and if he does so he is liable on summary conviction to a fine5. This restriction does not, however, apply to the testing of sight by a person recognised by a medical authority6 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 approved7; and the General Optical Council