A corneal abrasion is a painful scrape or
scratch of the surface of the clear part of the eye. This clear tissue
of the eye is known as the cornea. This transparent window covers the
iris, the circular colored portion of the eye. The cornea has many
nerve endings just under the surface, so that any disruption of the
surface may be painful.
A scratch, cut or minor injury on the
cornea. The cornea is the clear layer at the front of the eyeball that
has a protective function. The cornea can be injured by such things as
dirt or sand getting in the eye or even vigorous rubbing of the eye.
Corneal abrasions may be very painful and can cause symptoms such as
tearing, blurred vision and headaches.
A corneal abrasion heals
by the movement of neighboring epithelial cells, which slide over the
wounded area, and through a cell division process called mitosis, which
fill in the abraded area with new epithelial cells. Within two to three
days of trauma to the cornea, these new cells start to adhere to the
underlying membrane of the epithelium, called the basement membrane and
within seven to eight days the abraded area usually heals completely
without scarring.
CausesInjury to the cornea or the
imbedding in the cornea of a foreign body, such as a small piece of
steel, sand or glass. A bacterial infection may follow the injury. Use
of contact lenses, especially extended-wear lenses. Complications of
the virus, herpes simplex, that produces cold sores on the mouth and
can affect the eye. Infections of the eyelids and conjunctiva.
Defective closure of the lid. Smoking or other environmental eye
irritants.
SymptomsCorneal abrasions and foreign
bodies usually cause pain, tearing, and a feeling that there is
something in the eye. They may also cause redness (due to bleeding from
blood vessels on the surface of the eye) or, occasionally, swelling of
the eye and eyelid. Vision may become blurred. Light may be a source of
irritation or may cause the muscle that constricts the pupil to undergo
a painful spasm.
Injuries that penetrate the eye may cause
similar symptoms. If a foreign object penetrates the inside of the eye,
fluid may gush out.
Tea Tree Oil is very effective for
cleaning abrasions and healing. Just take a bowl and add 4 drops of tea
tree oil and 1 cup of warm water and wash the abrasion with this
mixture 3 times a day. Marigolds are wonderful to have growing as they
are great for abrasions. All you have to do is take some flowers of the
marigold and crush them then apply to the abrasion. Apply Aloe Vera gel
on the affected part, as it acts as a soothing home remedy for Skin
Abrasion.
Treatment for Abrasions Conventional treatment
of abrasions and road rash included treating the area by cleaning the
wound with mild soap and water or a mild antiseptic wash like hydrogen
peroxide, and then covering the area with an antibiotic ointment and a
dry dressing. However, it has been found that the use of antiseptics
such as hydrogen peroxide may actually cause harm to the tissue and
interfere with the healing process.
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