Ophthalmo-neurological Symptoms in Connection with Malignant Nasopharyngeal Tumours.

incisions taking with it the iris and probably, necessitating further surgical interference in the form of an iridectomv. On the other hand once the conjunctival flap has healed, there is sufficient back pressure on the aqueous in the anterior chamber to prevent its sudden escape through the triangular opening, there is now no danger of the iris prolapsing. As soon as massage has been started it may be carried out once or twice daily during the post-operative period to ensure the passage of aqueous through the opening and to prevent healing occurring at its edges. The patient is allowed up at this juncture and can usually be discharged around the tenth day. He is instructed to massage the eyeball gently daily througb the lower lid and is seen at weekly intervals until it has become obvious that a p)ermanent filtering cicatrix has been produced; at this stage massage is discontinued.