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

Chapter 154: WIDENED PALPEBRAL FISSURE.

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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.

WIDENED PALPEBRAL FISSURE.

After wounds of the outer canthus the union of the edges may remain imperfect so that the fissure is enlarged and the eye unduly exposed. The case is still worse if the wound has deviated from the horizontal and has involved the orbicular muscle, the divided ends of which continue to draw the edges apart, and cause a constant overflow of tears (epiphora). Enlargement of the bulb or its protrusion by reason of a swelling beneath it may give rise to the same appearance (exophthalmos).

Treatment. Pare the edges of the upper and lower lids at the outer canthus and bring them together by sutures.