The commoner diseases of the eye : how to detect and how to treat them . >?-Vi Staphyloma,. Following Ulcer of the Cornea. by cauterizing its surface and undermined mar-gins. The actual cautery, especially the gal-vano-cautery, seems to be the only means of ar-resting the disease in many cases. In the milderforms of the disease the pure tincture of iodinehas a beneficial effect. Pure carbolic acid or 10 21 is COMMONER DISEASES OF THE EYE per cent solution of nitric acid has also beenused with good results. A wooden toothpick is dipped in either ofthese remedies and applied thoroughly to the
The commoner diseases of the eye : how to detect and how to treat them . >?-Vi Staphyloma,. Following Ulcer of the Cornea. by cauterizing its surface and undermined mar-gins. The actual cautery, especially the gal-vano-cautery, seems to be the only means of ar-resting the disease in many cases. In the milderforms of the disease the pure tincture of iodinehas a beneficial effect. Pure carbolic acid or 10 21 is COMMONER DISEASES OF THE EYE per cent solution of nitric acid has also beenused with good results. A wooden toothpick is dipped in either ofthese remedies and applied thoroughly to thecocainized ulcer-excavation, after cleansing andstaining with fluorescein. To be effective thetoothpick should be soaked in the germicide fluidand pricked into the surface of the ulcer. An incision through the floor of the ulcershould be resorted to if there is danger of per-foration ; sometimes paracentesis greatly assiststhe healing of the ulcer. Ring ulcer is situated at and tends to spread. Ring Ulceration of the Cornea. around the margin of the cornea. It is morecommonly met with in old people, especially inthose whose general health is not of the best COMMONER DISEASES OF THE CORNEA 209 and who have a chronic catarrh of the palpebralconjunctiva or a chronic dacryocystitis. Itprobably arises from an abrasion of the epithe-lium due to the lodgment of a foreign body atthe corneal limbus, infection taking place fromthe conjunctival or other discharge present. Acommon form of this disease occurs in farmers,whose eyes are liable to injury from the flyingstems and other parts of wheat or hay. Anabrasion of the cornea is the result and infec-tion follows. It usually takes the form of a deep ulcer withinfiltrated edges, that spreads along the cornealmargin instead of extending towards the pupilas in ordinary serpiginous ulcer. The olderulcer may heal while the recent necrosis grad-ually extends, although destruction of the wholecornea may occur from interference with itsnutriti
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