Abstract
There are certain phases of the relationship between the eye and the paranasal sinuses which are apparently so well understood as to require little or no mention. I take it that when one sees a case of frank orbital cellulitis, the sinuses are suspected and the patient is referred to the proper authorities if nasal examination and roentgenograms offer evidence of infection. It has been my experience in such cases that when the sinuses are incriminated, the infection is usually a purulent ethmoiditis or sphenoiditis which leaves no doubt of its etiologic importance, and that in the other cases some cause for a metastatic infection can be located elsewhere in the body. That the sinuses are foci of infection causing uveitis, episcleritis and deep keratitis is also, I believe, kept sufficiently in mind by most ophthalmologists. The association is not nearly so frequent as one would expect from

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