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1 F. Higginson Cabot Laboratory of Electron Microscopy, Division of Surgical Pathology, Departments of Surgery and Pathology; and the Department of Ophthalmology, College of Physicians and Surgeons, Columbia University New York, N.Y.
Paired isolated corneas were perfused in vitro with a modified KEI medium according to the method of Mishima and Kudo. One eye of each pair was perfused with the complete medium and the other with a Ca++-free medium. Progressive corneal swelling occurred in the Ca++-free medium. The swollen corneas had a greatly increased passive permeability to nontransported nonelectrolytes, suggesting a physical change in the permeability barrier. Electron microscopic examination of the swollen corneas showed that the apical functional complexes (terminal bars) underwent progressive disintegration in the Ca++-free medium and that the degree of this disintegration was correlated with the degree of swelling.
Note:
Recipient of a Career Scientist Award of the Health Research Council of the City of New York, under Contract No. I-320.
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