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As a teacher of ophthalmology to undergraduate students, I have always laid great stress on the recognition and clinical interpretation of circumcorneal injection. I am impelled, therefore, to present the appended case of engorgement of the circumcorneal vessels, which shows in a remarkable manner their anatomic distribution.
Ordinarily it is the anterior ciliary arteries and their peripheral terminations, the circumcorneal loops of vessels, that are engorged. This is the case in all acute inflammatory conditions affecting the cornea, iris or ciliary body. In the case presented, the anterior ciliary veins were engorged, but as in this location the veins accompany the arteries, the study from an anatomic standpoint is not vitiated. In fact, it may be that it is enhanced, for in this instance the circumcorneal loops of vessels that spring from the anterior ciliary arteries just before they penetrate the sclera were not shown, but the emergence of
Blue R. A CASE OF CYANOSIS DEMONSTRATING THE CIRCUMCORNEAL VEINS. Arch Ophthalmol. 1932;8(1):94–96. doi:10.1001/archopht.1932.00820140102012
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