Diagnostic Significance of Retinal Artery Pressure in Internal Carotid Involvement*

Arteries of the orbit in the human being

“…The clinical usefulness of ophthalmodynamometry in the early diagnosis of internal carotid artery insufficiency has become increasingly important with the recent advent of more effective surgical and medical therapy. Ophthalmodynamometry has been found useful in the diagnosis of carotid occlusion in 72 per cent by Hollenhorst (1960) Smith (1961a), and in more than 80 per cent by Weigelin and Lobstein A fall in the systolic blood-pressure of the ophthalmic artery in these cases has been considered of great importance by some workers (Mones, 1958;Smith, Zeiper, and Cogan, I959), but others (Hollenhorst, 1958(Hollenhorst, , 1959Thomas and Petrohelos, 1953) consider a diastolic fall to be more significant. On the other hand, Spalter (1959) stated that both the systolic and the diastolic pressure should be recorded for correct evaluation.…”

Ophthalmodynamometry in Carotid Artery Disease

“…The difference between these results and those of Bailliart and other workers (Bidault, 1931;Streiffe, Audeoud-Naville, and Audeoud, 1937) is probably due to minor variations in technique as in the arbitrary point taken as the diastolic level. mometry in detecting carotid occlusion are confirmed (Thomas and Petrohelos, 1953); Wood and Toole, 1957;Heyman, Karp, and Bloor, 1957). A difference in pressure of more than 25 g. between the two eyes is almost diagnostic and a difference of this order is more likely to be found in systolic than in diastolic readings and in recent rather than late cases.…”

The Clinical Measurement of Retinal Arterial Pressure

“…In these instances digital pressure over the normal carotid artery lowers the pressure in the opposite eye to its previous level.18 19 Several authors have suggested the clinical usefulness of this technic in selecting patieiits for carotid ligation and in evaluating the efficiency of the ligation. …”

“…[3][4][5][6][7][8][9][10][11][12] Increasing recognition of the syndrome of thrombosis of the internal carotid artery13-17 and the obscrvation that ophthalhnodynamometry is a usefnl tool in the diagnosis of this disorder [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] has now-brought this procednre to the attention of internists, neurologists, and neurosurgeons. rlthis paper (leals with a general evaluation of this measurement.…”