Distichiasis
Distichiasis is a condition where extra eyelashes grow from an abnormal position within the eyelid and may turn inwards towards the eye.
In some cases, these eyelashes are very fine and do not cause any problems. However, sometimes, particularly where there are more lashes or the extra lashes are more coarse, this can lead to irritation, discomfort, excessive tear production, or, in some cases, damage to the surface of the eye.
Each patient is assessed individually, as the severity and impact of the condition can vary widely.
If treatment is needed, there are a couple of options available. These treatments aim to permanently remove the abnormal eyelashes by targeting the hair follicles at their source.
One option uses a controlled freezing technique, while another uses a targeted electrical method. Both are designed to prevent the hairs from regrowing. In some cases, more than one treatment session may be required to achieve the best result.
As with all eyelid procedures, great care is taken to preserve the normal structure and function of the eyelid so that it continues to protect the eye effectively.
Trichiasis
Trichiasis occurs when normal hairs from the eyelids or surrounding facial structures grow in such a way that they come into contact with the surface of the eye.
This is commonly seen in certain breeds, particularly brachycephalic dogs such as Pugs, Bulldogs, and French Bulldogs, where facial conformation or skin folds can cause hairs to rub against the eye.
This rubbing can lead to irritation, discomfort, excessive tearing, and in some cases damage to the surface of the eye if left untreated.
Treatment depends on the underlying cause and severity. In some cases, surgical correction may involve reducing or removing the skin fold that is causing the hairs to contact the eye. This can also have the added benefit of improving associated skin fold inflammation or infection.
As this type of procedure can change the appearance of the face, this will always be discussed with you fully beforehand so you can make an informed decision about treatment.
Ectopic cilia
Ectopic cilia are abnormal hairs that grow from the inside of the eyelid and rub directly against the surface of the eye.
Although these hairs are often very small and difficult to see, they can cause significant discomfort and are a common cause of painful or recurring corneal ulcers.
Unlike distichiasis, where multiple abnormal eyelashes may be present, ectopic cilia are usually found as a single hair. Because of their location, they can be difficult to diagnose and may need to be specifically investigated in pets with ongoing eye irritation or repeated ulcers.
Treatment typically involves surgical removal of the affected hair and surrounding tissue to prevent continued irritation and allow the eye to heal comfortably.
