Here are 5 common problems related to cornea. The cornea being the most exposed part of an eye is always subject to beating by foreign elements and injuries.


The most condition affecting cornea is allergy and everyone faces this condition because the causes of allergy are available everywhere. The causes for allergy are:

  • Dust, mold, and dander are available in households
  • Pollens and pollutants found in the outdoors
  • Products like perfume and smoke cause irritation

The symptoms of allergies are redness of the eyes with a burning sensation, itching, and watery or mucus discharge. Puffiness, hazy vision, and sensitivity to light are also symptoms of allergies.

The good thing is that most types of allergies remain active for a short time. But some allergic conditions require prescription medicines. The best way to prevent allergy is to avoid the allergen.

Dry eye

Also called ocular surface disease, dry eye is a medical condition that could be extremely painful if persists for a long time. It occurs when the eyes stop producing tears, a watery element that washes away pollutants including dirt that can cause irritation and result in allergies.

Causes for dry eye include allergies, problems on the skin around eyelids, exposure to toxic chemicals and medicines. Also, wearing contact lens could cause dry eyes. Age is also an important factor in dry eye disease – people over 65 years of age are prone to this medical condition.

The symptoms of dry eye are red eyes, itching, hazy vision, and stinging in the eye. For treatment, you need to visit an eye specialist the treatment is symptomatic.


The cornea is prone to many types of infections because it doesn’t contain blood vessels. For example, take conjunctivitis that strikes the cornea often. Also called pink eye, it is a common problem but cornea ulcer is a serious problem.

Symptoms of cornea infections are swelling with pain, itching, and distorted vision. Treatment is given according to symptoms and it includes prescription medicines including eye drops, antibiotics, and creams.


Caused by the varicella-zoster virus, shingles is a kind of eye infection resulting in an agonizing blistering rash. The common causes of these conditions are aging and a weak immune system. The virus remains inactive within the central nervous system for some time and causes a painful rash accompanied by high temperature when active. The corneal damage becomes visible after the infection is controlled. It can cause permanent damage to the cornea in the form of decreases sensitivity.

A thorough checkup of the infected eye is needed soon after the development of the condition.

Corneal dystrophies

There are as many as 20 types of corneal dystrophies and each one affects a different part of the cornea. This medical condition affects the regular clarity of the cornea. A cloudy material in the eye increases causing visual impairment. But dystrophies don’t cause permanent loss of vision.

Treatment of dystrophy is provided according to the age of the patient and medical condition. In the early stages, the problem can be controlled with mild drugs but prescription medicines are required in case of serious dystrophies.

Categories: Cornea