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Abstract
Photographs of the bulbar conjunctiva of 56 diabetic and 59 nondiabetic control patients
were analyzed by newly developed morphometric techniques. When compared to controls
diabetic patients showed: (1) decreased vascularity in the capillary bed but an increased
vascularity of the venules with a volume shift in the distribution of blood into the
venules; (2) an increased capillary pressure but comparable flow and, therefore, increased
capillary resistance; (3) an increase in the range of background density suggesting
either focal thickening of the interstitial tissue or variable amounts of fluid within
the tissue; (4) a decrease in the percentage of the area occupied by microvessels;
and (5) an increase in diffusion distance to all vessels.
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References
- Morphometry of conjunctival blood vessels. Concilium Ophthalmologium XXIII, Kyoto.Acta. 1978; 2: 1793-1796
- Topographical simulation of the blood vessels of the bulbar conjunctiva and application of pressure-flow relationships. Doctoral Thesis: University of California, San DiegoJuly 1980
- Quantitative studies of microcirculatory structure and function. III. Microvascular hemodynamics of cat mesentery and rabbit omentum.Circ Res. 1977; 41: 380-390
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© 1981 American Academy of Ophthalmology, Inc. Published by Elsevier Inc. All rights reserved.