Recurrent corneal erosion is a condition affecting the outermost layer of corneal cells called the epithelium. The problem is caused when the bottom layer of epithelial cells adhere poorly to the cornea, causing them to slough off easily. The pain and discomfort is often quite intense, and similar to a corneal abrasion. There is usually an underlying disorder that causes recurrent corneal erosions to occur. The most common are: previous corneal injury (corneal abrasion), corneal dystrophy (Map Dot Fingerprint Dystrophy), or corneal disease resulting in recurrent breakdown of the epithelial cells.
patients often experience severe pain, blurred vision, and light
sensitivity when the
pulls the loosened epithelial cells off the cornea. After the
cornea heals, the problem recurs as the name implies unless the
condition is treated. Recurrent corneal erosion may affect one
or both eyes, depending on the underlying cause.
Signs and Symptoms
slit lamp microscope, the doctor
examines the corneal layers under high magnification. Eye
drops containing green dye called fluorescein are usually instilled
to stain the areas of missing epithelium, allowing the doctor to
evaluate the size and depth of the erosion.
Salt solution drops or ointment are usually prescribed as the first line of treatment. This medication helps the epithelium to adhere better to Bowman's layer of the cornea. Artificial tears are also recommended to keep the cornea moist.
Those with underlying
corneal dystrophy may require additional treatment. This
usually includes an in-office procedure where the epithelium is
either gently removed, or microscopic "spot welds" are made on the
cornea to encourage the epithelial to bond securely to Bowman's
Patients who continue to suffer from recurrent corneal erosions despite the treatments described, may benefit from phototherapeutic keratectomy (PTK). This involves removal of the superficial layer of corneal cells using the Excimer laser to encourage proper healing.
St. Luke's Cataract & Laser
Institute provides this on-line information for educational and
communication purposes only and it should not be construed as
personal medical advice. Information published on this St.
Luke's website is not intended to replace, supplant, or augment a
consultation with an eye care professional regarding the
viewer/user's own medical care. St. Luke's disclaims any and
all liability for injury or other damages that could result from use
of the information obtained from this site.