All professional attendances after the first, being those attendances regarded as a single service, in a single course of attention involving the prescription and fitting of contact lenses, for patients who have a medical or optical condition (other than myopia, hyperopia, astigmatism, anisometropia or a condition to which item 10926, 10927 or 10928 applies) requiring the use of a contact lens for correction, if the condition is specified on the patient's account, being a course of attention for which the first attendance is a service to which:(a) item 10905, 10907, 10910, 10911, 10913, 10914, 10915 or 10916 applies; and(b) the contact lenses are not required for appearance, sporting, work or psychological reasons.Applicable once in a period of 36 months