Within the past eight years various publications have appeared intended to show a connection between certain ocular and nasal disturbances.
The proof that lesions of the orbit, eye and its appendages or symptoms referable to these parts are induced by preexisting nasal diseases, can be furnished in various ways, viz.:
1. We may trace anatomically the extension of disease of the nasal cavity into the orbit or into the appendages of the eye.
2. We may observe clinically the involvement of these parts or of the eye itself in disease consecutive to and in direct connection with nasal disease.
3. We may influence in a characteristic manner by means of nasal treatment eye effections the prognosis of which is definitely known.
4. More decisive than these methods is the experimental production of eye lesions in animals in consequence of nasal disturbances. As yet, nothing has been done in this line.