The corneomandibular reflex, or von Sölder phenomenon, is an automatic, involuntary movement of the mandible elicited by touching the cornea. This phenomenon is helpful in diagnosis of supranculear lesions of the trigeminal nerve. It simply requires observation of the relaxed and slightly opened jaw when the cornea is stroked with a cotton wisp, and it can be handily included in the testing of corneal sensation. A prominent deviation of the jaw, the result of homolateral contraction of the external pterygoid muscle, constitutes a positive response. Because this reflex has not been previously reported in the ophthalmic literature to our knowledge, the following cases are presented.
Report of Cases
—This 61-year-old Negro male was seen in October, 1961. He had known severe hypertensive vascular disease for many years. He suffered a sudden right hemiplegia in 1952 and a left hemiparesis in 1955. Three weeks prior to admission, he developed
SMITH JL, DAVID NJ, MITCHELL C. The Corneomandibular Reflex. Arch Ophthalmol. 1963;70(1):12-14. doi:10.1001/archopht.1963.00960050014004