Entropion in Horses
Entropion is a condition of the eye that is known to affect newly born foals, causing their eyelids to fold inward and press against their cornea. Entropion may be found in one or both of the horse's eyes, leading to extreme irritation and “runny,” watery eyes, similar to conjunctivitis. If it is not treated quickly, it may also lead to acute conjunctivitis.
Symptoms
A horse with entropion will have irritated or red eye(s) and the horse's cornea -- the transparent front of the eye -- may change to a grayish color.
Causes
Entropion is due to a horse's misshapen eyelids. This not only causes them to press up against the cornea but allows the horse's eyelashes to brush and irritate the eye.
Diagnosis
A veterinarian will use a special tool to look at the horse's eye(s) and measure the distance between the eyelid and the eye. Irritated eyes are another good indicator of entropion.
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Treatment
While the pain and soreness associated with entropion can be treated using topical and other forms of medication, a surgical adjustment of the eyelid(s) is the only way to correct the condition. Once the stitches are removed, the eyelid should be trained to properly position itself outwardly.
Living and Management
If you choose to proceed with the surgery, be aware that the horse may become uneasy and temperamental, however, this is only temporary. Also, there are some problems associated with the surgery, including temporary blindness.
Prevention
Entropion cannot be prevented, as it is genetic and something that some foals are born with. Luckily, it can be fairly easily corrected.