April 1962
Volume 1, Issue 2
Free
Articles  |   April 1962
Symposium on the Cornea
Author Affiliations
  • JOHN E. HARRIS
    Department of Ophthalmology, University of Minnesota Medical School.
Investigative Ophthalmology & Visual Science April 1962, Vol.1, 151-157. doi:
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      JOHN E. HARRIS; Symposium on the Cornea . Invest. Ophthalmol. Vis. Sci. 1962;1(2):151-157.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

The swelling of the corneal buttons in aqueous solution can be prevented by adding high molecular iveight solutes to the bathing medium. In appropriate concentrations of these colloidal substances the button can be dehydrated, a matter of some significance in clinical situations. Swelling of the cornea in the intact eye in vitro can be similarly prevented. The suggestion is made that swelling is due to Donnan osmotic pressure of the cornea. Current evidence favors the view that the swelling potential is present in vivo and that normal corneal hydration is maintained by secretion of fiuid. The rate of secretion seems adequate to maintain normal corneal hydration in close proximity to a corneal puncture.

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