THIS STUDY was made on patients visiting the Consultation Service of the Mount Sinai Hospital (New York). The 500 patients selected showed no neurologic abnormality aside from the two factors under study. In no instance were patients included whose history or neurologic examination could explain the presence of the abnormalities under investigation. These subjects could, therefore, be considered representative of the neurologically sound population. The sexes were about equally represented: 245 males and 255 females. They were of all ages, but most of them were in the third, fourth and fifth decades of life.
Method of Examination.
—The pupils were examined by having the sitting patient look at the ceiling. A flashlight was directed toward the eyes from below upward in such a manner as to reveal the pupillary outline without causing constriction. Inasmuch as minute differences in pupillary size were not being looked for, no measurements were
MEYER BC. INCIDENCE OF ANISOCORIA AND DIFFERENCE IN SIZE OF PALPEBRAL FISSURES IN FIVE HUNDRED NORMAL SUBJECTS. Arch NeurPsych. 1947;57(4):464-468. doi:10.1001/archneurpsyc.1947.02300270082005