By Nicholas Robert Galloway MD, FRCS, FRCOphth, Winfried Mawutor Kwaku Amoaku FRCS, FRCOphth, PhD (auth.)
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37 38 Cornrnon EyeDiseases and their Management a ----- - ---- - -----b Fig. 13. bThe same lesion, which in thiscase had remained untreated, showing spontaneous regression. very disfiguring. This also may regress in a remarkable way. "Port wine stain" is the name applied to the capillary haemangioma. This is usually unilateral and when the eyelids are involved there is a risk of association with congenital glaucoma, haemangioma of the choroid and haemangioma of the meninges on the ipselateral side (Sturge-Weber syndrome).
The answer for the doctor is "when in doubt, X-ray", especially when a hammer and chisel or high-speed drill have been used. 9). Corneal Ulceration Corneal ulcers may arise spontaneously (primary) or they may result from some defect in the normal protective mechanism or sometimes they are part of a more generalised susceptibility to infection (secondary). The nerve endings in the cornea are painsensitive endings and a light touch is feit as a sharp pain. Furthermore, stimulation of these nerves causes a vigorous blink reflex and the eye begins to water excessively.
The layer underlying or posterior to the surface epithelium is known as Bowman's mern brane and if this layer is damaged by the injury or cut into unnecessarily by over-zealous use of surgical instruments, then a permanent scar may be left in the cornea. When the epithelium alone is involved there is usually no scar, and healing results in perfect restoration of the optical properties of the surface. Common Diseasesofthe Conjunctiva and Cornea The stroma of the cornea is surprisingly tough, permitting some degree of boldness when removing deeply embedded foreign bodies.
Common Eye Diseases and their Management by Nicholas Robert Galloway MD, FRCS, FRCOphth, Winfried Mawutor Kwaku Amoaku FRCS, FRCOphth, PhD (auth.)