The changes which appear in the retina in many cases of diabetes mellitus are known as diabetic retinitis. These consist mainly of hemorrhages and exudates. Because of the appearance of hemorrhages and exudates with arteriosclerosis of the retinal vessels, many observers question the ophthalmoscopic entity of diabetic retinitis. Some have been led to assume that the changes in the fundi are secondary to arteriosclerosis in any person suffering from diabetes mellitus. The changes are, however, so typical that any one familiar with the ophthalmoscopic picture on finding them is at once led to suspect the presence of diabetes mellitus, which on proper examination is always found. A causal connection between these retinal changes and diabetes must therefore be assumed, and the pathogenesis of these changes constitutes the problem of diabetic retinitis. In recent years a number of publications have reviewed this subject. Examples of such reviews are those by Waite
ELWYN H. PROBLEM OF DIABETIC RETINITIS. Arch Ophthalmol. 1941;25(1):139–148. doi:10.1001/archopht.1941.00870070153016
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