By J. L. C. Martin-Doyle (Auth.)
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Additional resources for A Synopsis of Ophthalmology
T h i s has prominent pale radiating stripes, the ciliary processes, 70-80 in number, each measuring about 1-2 m m . in length and £-1 m m . in height. These ciliary processes are almost entirely vascular. T h e anterior surface of the ciliary b o d y is hidden. C I L I A R Y M U S C L E . — A f e w unstriped muscle-fibres are found in the epichoroid near the equator. These increase g r e a t l y in the ciliary region b o t h in number and size. T h r e e distinct series of muscle-fibres are present : — 1.
C o n i c a l C o r n e a is believed t o be due t o a congenital weakness which rarely manifests itself before puberty. T h e centre of the cornea is thin and bulges forwards t o assume a coneshaped appearance. This bulging causes marked m y o p i a and a high degree of astigmatism, w i t h consequent gross impairment of vision. Sometimes the bulging cornea pulsates w i t h the arterial pulse, and this has been demonstrated on a Schiötz tonometer. I n a suspected case of conical cornea examination should be made w i t h the patient in profile, when the corneal protrusion often becomes obvious.
P i g m e n t has been found in some cases p r o v i n g the uveal origin o f these cells. iii. I n 70 per cent of h y p o p y o n ulcer cases the invading organism is the pneumococcus, the most serious o f all eye infections. — i. H y p o p y o n is a v e r y serious disease and should a l w a y s be treated in hospital. ii. Since h y p o p y o n is sterile, evacuation is unnecessary (except, v e r y rarely, when there is risk o f the exudate organizing, or in the v e r y fulminating cases when Saemisch's section is undertaken).
A Synopsis of Ophthalmology by J. L. C. Martin-Doyle (Auth.)