It is only recently that the relation of cause and effect which exists between nasal affections and those of the conjunctiva have begun to attract attention. That this relation does exist there can be no doubt, but it has not been properly appreciated.
The obstinate and unsatisfactory course which many cases of conjunctivitis pursue is well known; it usually means a long period of suffering and disability to the patient and a wearisome, unresponsive and unsatisfactory treatment on the part of the physician. The practical discovery of the dependence of conjunctival disease on that of the nasal cavities is due perhaps more to the nasal than to the ophthalmic surgeon. This was due not so much to the lack of ability on the part of the oculist as to the immense advances recently made in the domain of nasal surgery. Previous to these, although it was known that the nasal