What is trichiasis?

In trichiasis, the eyelashes point inwards towards the eye rather than outwards as normal.  Rarely, the condition may run in families, so that babies may be born with it. Much more commonly it results from either entropion (turning in of the lower lid resulting from age-related slackness of the tissues) or long-standing inflammation of the conjunctiva and or eyelids.

People with trichiasis usually have uncomfortable red eyes and feel as though there is something in the eye.  The optometrist will see that one or more lashes are in contact with the eye surface.  This may damage the eye’s surface, which can then become infected. 

How is trichiasis managed?

The optometrist may decide to pull out the offending lashes, using fine forceps.  However, the lashes will usually grow again within four to six weeks, so this is only a temporary solution.  Sometimes a bandage contact lens is fitted to relieve the patient’s symptoms.  If the problem persists, the optometrist will refer the patient to the ophthalmologist, who may decide to remove the lashes by electrolysis, cryotherapy (freezing treatment) or laser treatment.  If the cause is entropion, a minor surgical procedure may be required.