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May 1939

ARACHNODACTYLY: Report of a Case

Author Affiliations

Spokane, Wash.

Arch Ophthalmol. 1939;21(5):854-855. doi:10.1001/archopht.1939.00860050138013

The case of arachnodactyly reported here is interesting because the condition occurs singly in a perfectly normal family (3 siblings) and because of the train of events leading to the diagnosis.

J. B., aged 6 years, was brought in for examination as required for admission to the state school for the blind. He had been examined at the age of 4 by an oculist (now deceased), who after several attempts to improve the extremely poor vision gave the mother a discouraging prognosis, and nothing was done.

External examination of the eye showed that the patient's far point grossly was about 3 inches (7.6 cm.). The lids, the position of the eyes, conjunctiva, the lacrimal apparatus and the tension on palpation were normal. The pupils were small and irregular. They reacted sluggishly to light and in accommodation. The irides were both tremulous. It was impossible to dilate the pupils more than