
Entropion is the medical term used to describe a condition
where the lower eyelid and eyelashes turn or roll inward
towards the eye. This causes the eyelid and its lashes
to constantly rub against the cornea (the front part
of the eye) and conjunctiva (the mucous membrane that
protects the eye).
Entropion is usually due to relaxing of the tissues of
the eyelid as a result of aging changes, Thus, it is
most often seen in elderly people who develop stretching
of the structures supporting the lower eyelid to turn
inward. Entropies may also be caused by inflammation
or scarring on the inner surface. Sometimes, entropion
is present at birth (congenital) if the eyelids are not
formed normally.
Entropion can cause chronic irritation to the eyelid
and the eye. This can result in excessive tearing, crusting
on the eyelid and mucus discharge, a feeling that something
is in your eye, irritation of the cornea, and impaired
vision.
Damage to the cornea (the clear part of the eye),
including infection and scarring, may develop due to
the chronically turned in eyelid. These are important
reasons for having this condition repaired before permanent
damage occurs to the eyes.
The usual management for entropion involves tightening
of the eyelid and its attachments to restore some of
its elasticity and to reposition it normally. There
are a number of surgical techniques for successfully
managing an entropion and each surgeon will have a
preferred method.
If a patient is not able to undergo
surgery, tape or sutures can be used to temporarily
reposition
the eyelid and to protect the eye. Lubricating drops
and ointments for the eye are also helpful on a temporary
basis.
Entropion seen in babies usually resolves spontaneously
within a few months, but occasionally needs to be
treated.
When other factors contribute to the presence
of an entropion, they may require special treatment.
Medications are frequently used to control inflammation
or infection of the eyelid and to treat scars. Scar
excision and tissue grafts may also occasionally
be necessary.