Ectropion vs Entropion – And what else?

Ectropion vs Entropion – And what else?

While most of are well informed of what Entropion in dogs is, we also find a fair amount of bulldog suffering from Ectropion. What is the difference between the two and are there similarities in how they are treated?

Entropion is the turning in of the edges of the eyelid so that the eyelashes and fur rub against the eye surface. It is the most frequent inherited eyelid defect in many dog breeds. It may also follow scar formation and severe involuntary winking due to pain in the eye or the surrounding area. The turning in of eyelashes or facial hairs causes discomfort and irritation of the conjunctiva and cornea. Long term entropion can cause scarring, abnormal colouring, and possibly the formation of slow-healing sores on the cornea.

Early spasms of entropion may be reversed if the cause is removed or if pain is lessened. Turning the lid hairs back away from the eye with stitches in the lid, injections of medication into the lid close to the area where the lid is turning in, or using anaesthetics to block the nerves in the eyelids are some of the methods that have been used to lessen the pain. Very young puppies with this condition may sometimes be treated with temporary stitches that are removed in 2 to 3 weeks. Established entropion usually requires surgery to correct the defect.

What about Ectropion?

Ectropion is a slack eyelid edge that is turned out, usually with a large notch or “crack” in the eyelid. It is a common abnormality affecting both eyelids in a number of dog breeds, including the Bloodhound,Bull Mastiff, English Bulldog, Great Dane, Newfoundland, St. Bernard, and several Spaniel breeds.

Scars in the eyelid or facial nerve paralysis may produce ectropion in one eyelid in any species. Exposure of the conjunctiva to environmental irritants and secondary bacterial infection can result in long term or recurrent conjunctivitis (inflammation of the conjunctiva). Topical antibiotics may temporarily control infections, but surgical lid-shortening procedures are often necessary to resolve the condition. Repeated, periodic cleansing of the affected eyelid with mild decongestant solutions can control mild cases. To protect your pet’s eyesight, follow your veterinarian’s treatment program carefully.

While these may be the most common of eye disorders, we also have to look at Lagophthalmos and abnormalities of the eyelashes. Lagophthalmos is an inability to fully close the eyelids and protect the cornea from drying and trauma. It may result from extremely shallow orbits, a common condition in breeds with short, broad, flattened heads (brachycephalic breeds, such as Bulldogs and Pugs, for example). It may also be caused by an abnormal protrusion of the eyeball due to a mass in the eye socket, or facial nerve paralysis. Scarring, abnormal colouring, and the formation of slow-healing sores of the cornea are common problems with this condition. Unless the cause can be corrected, treatment involves frequent use of lubricating ointments and surgical shortening or closure of the corners of the eye either temporarily or permanently. Excessive nasal skin folds and facial hair may aggravate the damage caused by Lagophthalmos.

Abnormalities of the eyelashes include extra eyelashes or misdirected eyelashes on the edge of the eyelid. These conditions may cause watering eyes, development of blood vessels in the cornea, and slow-healing sores and scarring in the cornea. In many instances, irregular eyelashes are very fine and do not cause signs of irritation or damage the eye. However, eyelashes in an unusual position sticking out through the back of the eyelid can cause profound pain. If the extra lashes cause damage to the cornea or conjunctiva, it may be necessary to surgically cut out or freeze and remove the eyelash follicles. Irregularities of the eyelashes are common in some dog breeds and are probably inherited.

Source: English & French Bulldog Rescue SA – August 2024 Newsletter

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Disclaimer: The information produced by Infurmation is provided for general and educational purposes only and does not constitute any legal, medical or other professional advice on any subject matter. These statements are not intended to diagnose, treat or cure any disease. Always seek the advice of your vet or other qualified health care provider prior to starting any new diet or treatment and with any questions you may have regarding a medical condition. If you suspect that your pet has a medical problem, promptly contact your health care provider.