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July 1962

Rate of Blood Flow and Its Effect on Chorioretinal Burns: Preliminary Report

Author Affiliations

Richmond, Va.
From the Departments of Ophthalmology and Biophysics, The Medical College of Virginia.

Arch Ophthalmol. 1962;68(1):58-61. doi:10.1001/archopht.1962.00960030062012

In previous articles1,2 the authors have discussed the spectral absorption characteristics of human and rabbit eyes. The distribution of energy, absorbed by the different fundus pigments has been determined for light of uniform intensity, for the XBO 2001 Xenon high pressure lamp as used in the Zeiss light coagulator, and for radiant energy emitted by a black body at 5,600 K. In the present paper the role of blood flow in retinal burn production is reported.

The influence of blood flow on the production of fundus threshold burns was studied in the rabbit fundus by comparing the amount of energy necessary to produce threshold lesions before and immediately after the animals were killed. Since the required energy for the production of such lesions depends, in part, on the retinal image size, this factor was kept constant throughout the experiment.

Methods and Materials  Variation due to differences in fundus pigmentation

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