Vicious circles in disease / by Jamieson B. Hurry.

  • Jamieson Boyd Hurry
Date:
1913
Catalogue details

Licence: Public Domain Mark

Credit: Vicious circles in disease / by Jamieson B. Hurry. Source: Wellcome Collection.

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    The use of an elastic bandage supports the weakened walls of the veins, prevents their further dilatation, and breaks the Circle. Catheter. Prostatic retention of urine is associated with reciprocal correlations. For the enlarged venous plexuses surrounding the prostate in elderly men readily become congested, causing obstruction to the urine which accumulates in the bladder. The pressure of urine in its turn aggravates the venous engorgement, and so the process is per¬ petuated. Catheterisation, by evacuating the bladder, relieves the pressure on the venous plexuses and cures the retention. Pessary. Uterine congestion and prolapse are other conditions which aid and abet one another, and so give rise to a Circle. A well adjusted pessary prevents the prolapse, relieves the congestion and breaks the Circle. Concave Lens. A fourth illustration is pre¬ sented by progressive myopia in which the myopia and the elongation of the eye-ball react on one another. As Satter writes : “ If the elongation of the eye-ball has once begun, myopia has a tendency to react upon itself by a kind of Vicious Circle as long as the noxious conditions which caused it are still in action. The posterior wall of the sclerotic, now somewhat attenuated, is more liable to give way, and the more egg-shaped the globe becomes the longer is the region of contact of the muscles with the surface of the eve. ! The prescription of concave lenses removes the near point, relieves the undue pressure on the globe, and checks the progress of the myopia. 1 Transactions of the Ophthalmological Society of the U.K., 1907, Vol. XXVII., p. 12.