A study of the pulse and vascular tension is of the utmost importance to the ophthalmologist. Although clinical reports and practice show that while very slight local eye symptoms are noticed, yet how seldom is the pulse recorded, even previous to a cataract operation or during the crises of a glaucoma. It would be well if all oculists would always report the tension of the pulse with the same care, and use the same signs which are used in regard to the eye. The scale would thus run from + 3 to - 3.
Rolling the artery under the fingers with varying pressures, or carrying the skin along longitudinally over the vessel, will decide the tension as well as the inequalities of thickness and density.
Ewart, in a classical work on pulse sensations, has proved that the tension may be best noted by the amount of pressure that will cause the pulse
STEVENSON DW. VASOMOTOR SYSTEM, AND THE IMPORTANCE OF THE DRUGS WHICH ACT ON IT, IN OPTHALMOLOGY. JAMA. 1900;XXXIV(5):274–275. doi:https://doi.org/10.1001/jama.1900.24610050020002f
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