Dry eye is an uncomfortable condition that causes itching and burning. But when the eye becomes dry, it affects the protective surface of the cornea and contributes to corneal abrasions. Dry eye occurs when eyes are unable to produce enough tears. Tears are important to keep the corneal surface lubricated, smooth and protected. They also help to wash away the irritants and dust. Those who are dealing with the problem of dry eyes may experience redness, burning, blurry vision and a sensation that something is sticky in the eye. A corneal abrasion is a scratch in the outermost layer of the cornea. It results from dirt, contact lenses, makeup applicators and many other things. The symptoms include excessive tearing, eye pain and sensitivity to light. The abrasion condition may heal at the initial stage if it’s not ignored because the damaged corneal surface becomes vulnerable to complications. The connection between these two conditions helps to recognize the symptoms and appropriate treatment at the right time.

Dry eyes contribute to corneal abrasions in many ways, as mentioned below:

Reduce Lubrication

The tear film creates a smooth layer between the cornea and eyelid. When the eye is unable to produce sufficient tears, the eyelids rub against the unprotected surface of the cornea during blinking. This friction can irritate the surface of the cornea. Severe dry eye may cause abrasions and other problems.

The Corneal Surface Becomes Unprotected

The tear film provides protection to the cornea. When this layer becomes unstable, the surface develops tiny areas of epithelial damage. If the surface becomes damaged, then areas progress into abrasions.

Dry Eyes Encourage Rubbing The Eyes

Dry eyes create a gritty sensation. This feeling of discomfort encourages you to rub your eyes. Rubbing can cause mechanical injury, especially when the surface of the cornea is already irritated. Repeated rubbing is a recognized factor in corneal abrasions.

Contact Lenses Increase The Risk

Those who have dry eyes and wear contact lenses are at higher risk of corneal surface injury. Dry eyes make the lens less comfortable, but a damaged and poorly fitting lens can rub against the cornea. When eyes are dry, wearing contact lenses may increase the risk of abrasions.

Problems Related To The Eyelid

Conditions that affect the eyelid can worsen the quality of the tear film. Abnormal movement of eyelids may increase the stress on the cornea.

Delayed Healing Of The Corneal Surface

Persistent dry eyes can interrupt the maintenance and repair of corneal cells, making minor injuries more complex.

Sleeping Exposure

If the eyelid is not completely closed while sleeping, then the cornea becomes dry, which contributes to irritation and epithelial injury.

Environmental Exposure

Wind, heat, air conditioning, dust, and low humidity can increase the evaporation of tears and leave the surface of the cornea vulnerable.

Less Protection Against Irritants

Tears help to remove dust and small particles from the eye. When the production of tears is inadequate, particles remain on the surface and cause scratching and irritation.

Conclusion

Dry eyes can reduce the comfort and functioning of the tear film, which contributes to damage to the corneal surface. Increased friction, reduced lubrication, and usage of contact lenses increase the risk of corneal abrasions. Dry eye is a possible cause of corneal abrasions and other complications. If you are experiencing eye pain or any other problems related to eye health, then without any delay, consult with an eye specialist, Dr. H Mitra, the experienced ophthalmologist of Mitra Eye Hospital and LASIK Laser Centre. Our hospital provides eye care services at affordable prices. With years of experience, we have helped thousands of patients receive safe, reliable and personalized care under one roof.

FAQ’S

How does rubbing eyes lead to corneal abrasion?

Rubbing can put pressure on the cornea and may cause scratches, which lead to corneal abrasion.

What are key symptoms of corneal abrasion?

The symptoms of corneal abrasion include redness, eye pain, watering, blurred vision and a sensation that something is stuck in the eye.