Entropion is a relatively common genetic disease of dogs characterized by an inwardly rolling eyelid.
The opposite to entropion is ectropion, an outward rolling of the eyelids.
Entropion results in facial hair coming into contact with the cornea or conjunctiva or both. Medial entropion tends to be more common in brachycephalic breeds with prominent nasal folds.
This abnormality in eyelid position and function can lead to chronic irritation of cornea and conjunctiva. Corneal ulceration, vascularization and pigmentation are common consequences. Loss of vision, or loss of the globe may be the end result. The combination of ptosis and entropion of the upper eyelid is commonly seen in breeds with abundant forehead skin folds.
Treatment aims at surgically correcting the defect, using either a fornix-based suture placement or medial canthoplasty, which are curative procedures in most cases. A temporary lateral tarrsorhaphy may be performed in juvenile dogs prior to later corrective surgery.
In the Shar Pei, brow suspension is usually required for treatment of ptosis and entropion with redundant facial skin folds.
Although a lateral canthoplasty is technically easier to perform, a medial canthoplasty is the preferred method of eyelid shortening.
- Colorado Great Pyrenees rescue
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