Entropion in Sheep
Entropion is a common eye condition in sheep where the lower eyelid rolls inward, causing the eyelashes to irritate the eye. This condition is often hereditary and can be seen in many sheep breeds and their cross-bred offspring. It usually appears at birth or shortly thereafter and can affect one or both eyes. If left untreated, entropion can lead to severe irritation, ulceration, and even blindness due to the constant rubbing of the eyelashes against the cornea.
Symptoms and Diagnosis of Entropion 🩺
Sheep with entropion will often have a discharge from the affected eye, which can quickly become pussy. The irritation caused by the eyelashes can lead to squinting, excessive tearing (epiphora), and secondary keratoconjunctivitis. In more severe cases, the cornea may become ulcerated, leading to potential blindness. Diagnosis is typically made through a physical examination of the eyelid position and the presence of these symptoms.
Treatment of Entropion 💊
Treating entropion involves correcting the position of the eyelid. In simple cases, this can be done by manually rolling down the skin below the eyelid. Applying a topical antibiotic ointment helps control any secondary bacterial infection and lubricates the eyelid to prevent further inversion.
If the condition recurs, an injection of 0.5ml of antibiotic into the lower eyelid can be administered. This procedure should be done carefully, with the lamb securely held, using a 21-gauge needle. Alternatively, thin metal clips (Eales clips) can be used to evert the eyelid quickly and effectively. In rare cases, surgical intervention may be necessary to remove a strip of skin and suture the edges to correct the eyelid position.
Prevention of Entropion 🛡️
Preventing entropion involves regular inspection of newborn lambs to ensure their eyelids are properly everted. Since entropion has a genetic component, it is important to identify and avoid using rams that produce affected offspring for breeding purposes.
By staying vigilant and addressing entropion early, you can help ensure the health and well-being of your flock. If you suspect entropion in your sheep, consult with a veterinarian for the best course of action.