Chalazion

A chalazion is a nodule that develops along the eyelid margin as a consequence of obstruction of the sebaceous (Meibomian) glands of the eyelid. It is usually firm and nonpainful. Because it resembles an eyelid neoplasm, an accurate diagnosis is required. Chalazia most commonly occur as a consequence of allergic diseases of the skin and conjunctiva.

Treatment

In most cases, a small chalazion may resolve spontaneously after systemic and topical medications are introduced to control allergic skin and conjunctival disease, together with ocular medications intended to improve tear-film quality. If the chalazion is larger and persistent and the dog is cooperative, warm compresses are applied for 10 minutes three to four times daily. Systemic anti-inflammatory medication is administered. If medical treatment is unsuccessful, surgical treatment is performed by incising and draining the chalazion.

Chalazion of the upper eyelid.

Chalazion of the upper eyelid. On careful examination, yellow-brown material can be seen within the Meibomian glands, together with thickening of the upper eyelid.

Chalazion of the upper eyelid. When the chalazion is surgically opened, its contents are easily evacuated. Whitish, "worm-like" material can be seen at the site of the Meibomian gland incision and on the scleral surface.

Adapted from the Atlas of Ocular Diseases in Dogs and Cats by Dr. Siniša D. Grozdanić and colleagues. © Animal Eye Consultants of Iowa. The text and clinical images on this page are original content from the authors' own clinical practice and research, and may not be reproduced, distributed, or repurposed without permission.

Think your pet may have chalazion?

Early evaluation gives us the most treatment options and the best chance of preserving vision.