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Text book of veterinary medicine, Volume 3 (of 5) cover

Text book of veterinary medicine, Volume 3 (of 5)

Chapter 214: COLOBOMA IRIDIS. CONGENITAL APERTURE IN IRIS.
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About This Book

Comprehensive clinical manual detailing disorders of the nervous, genitourinary, ocular, and integumentary systems in domestic animals. It begins with principles of neural control and general symptomatology, classifying motor, sensory, and psychic disturbances and methods for localizing lesions. The text describes specific conditions such as seizures, paralysis, meningitis, intracranial hemorrhage, tumors, and toxicoses, and outlines diagnostic signs and pathological causes. Later sections address urine analysis and renal disease, urinary tract inflammation and calculi, and diseases of the eye, skin, and constitutional systems, combining pathological description with clinical signs, differential diagnosis, and practical guidance for examination and interpretation.

COLOBOMA IRIDIS. CONGENITAL APERTURE IN IRIS.

This is a congenital defect in which there is an aperture in the iris. Hering figures the two eyes of a horse in which these appeared in the direction of the outer canthus. Renner records a case in a foal in connection with intra-bulbar enchondroma. Dochtermann and Berlin record that among 64 pigs the result of breeding a boar on his daughters and grand-daughters no less than 36 showed coloboma. Möller figures a dog with the same affection.

The condition is not known to prove hurtful to the affected animal so that it may be wisely let alone.