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November 1969

Direct-Recorded Intraocular Pressure Variations in a Human Subject

Author Affiliations

New York
From the Institute of Ophthalmology, Columbia-Presbyterian Medical Center, and the Department of Ophthalmology, Columbia University, College of Physicians and Surgeons, New York.

Arch Ophthalmol. 1969;82(5):637-640. doi:10.1001/archopht.1969.00990020633011

Direct recordings were made of intraocular pressure fluctuations during volitional activity in a human volunteer prior to enucleation for ocular tumor. Pressure increments of the order of 90 mm Hg for squeezing of lids, 10 mm Hg for eye turned to the side, and 10 mm Hg for blinking were recorded. Accommodation was attempted despite preoperative cycloplegia and revealed pressure increments of 4 mm Hg followed by a decrement of pressure.