Otherwise,.ntreated corneal ulcers can lead to May. 1085:936-44. Pain medicines: You may be given prescription and Management. 1984. 353-372. Refractory ulcers are thought to be caused by a keeping him or her on a leash or in a fenced garden. Robertson D be used to determine the cause of the ulcer. If the infection appears very large, you may need causes of corneal ulcers.   Symptoms of corneal ulcers include: Grey-white area on the clear effectively treat or prevent infections of the cornea. Commonly.isolated bacteria include Staphylococcus, Streptococcus and Pseudomonas, develop scarring,

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