This subject, I am sure, is not new to you, but since we are learning more about it every day, a few of my personal ideas and findings may prove of interest. The estimation of blood pressure has brought about a more comprehensive knowledge of cardiovascular disease. The remote disturbances which follow this important condition, and the etiologic factors which gradually lead up to it, are now receiving much attention. It is a well-recognized fact that a man may be on "his last legs," so to speak, from cardiovascular changes, and yet feel no serious bodily discomfort. He may have, therefore, no urgent reason for consulting his physician, but may have reason to consult his oculist, and we should constantly be on the lookout for ocular evidences of these vascular changes.
The recognition of these early changes in the retinal circulation may enable us to give many years of life
BLACK M. THE RELATION OF OCULAR AND CARDIOVASCULAR DISEASE.. JAMA. 1908;LI(3):212-216. doi:10.1001/jama.1908.25410030034001g