Infectious Keratitis

Infectious Keratitis, either acute or chronic, is caused by an infectious agent of some kind. Infectious agents include bacteria, fungi, and viruses.

Staphylococci, Haemophilus, Streptococci, and Pseudomonas bacteria are the most common causes of bacterial infectious Keratitis.

The viruses most likely to cause Keratitis are adenoviruses, herpes simplex, and herpes zoster. Herpes simplex is the same virus which is responsible for cold sores, for this reason, those who do get cold sores are slightly more likely to develop viral Keratitis.

Candida, Aspergillus, and Nocardia are the fungi most commonly responsible for fungal infections of the cornea.

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Non-infectious Keratitis

Non-infectious Keratitis is usually caused by an injury to the eye. It can also be a result of allergies which affect the eye. Dry eyes can cause the cornea damage and lead to Keratitis, too. Sometimes this is because of a pre-existing eye condition. The types of dry eye Keratitis are:

  • Keratitis sicca
  • Filamentary Keratitis
  • Exposure Keratitis

Risk Factors

There are a few risk factors that may predispose an individual to developing either infectious or non-infectious Keratitis. These are:

Wearing contact lenses
Lens wearers are more likely to develop Keratitis than those who do not wear contact lenses. Because of this, if you wear contact lenses make sure that you always wash your hands before putting in or taking out your lenses. You should also make sure that your lenses are properly cleaned and that you do not wear them for longer than your optometrist has recommended.

Medicated Steroid eye drops
The use of corticosteroid eye drops may make you more likely to develop Keratitis. For this reason, use your prescribed medicated steroid eye drops exactly as prescribed by your eye doctor or GP.

Immune system diseases
If you have an immune system disease or are undergoing chemotherapy, there is an increased risk of developing Keratitis.

Tropical weather
This last risk factor is purely an environmental one. If you live in a place where the climate is hot and humid on a regular basis, you’re at a slightly higher risk for developing Keratitis.

Signs and Symptoms

There are a few signs and symptoms that might alert you to the fact that you have Keratitis. If you experience any of the below signs and symptoms, please make sure that you make an appointment to see an eye specialist as soon as possible. You should treat the situation as urgent if you experience 3 or more of these:

  • Blurred or hazy vision
  • Decreased or clouded vision
  • The cornea looks discolored
  • Eye pain, from moderate to severe
  • Increased sensitivity to light (photophobia)
  • Red eyes
  • A discharge or tearing up that is not the result of emotion
  • Watery eyes

Is Keratitis Serious?

Keratitis is not normally considered a serious condition so long as a prompt diagnosis is made and a treatment plan put in place. That said, it can certainly feel serious enough to those who suffer from Keratitis, particularly if the condition is chronic (recurring even after treatment).

If, however, Keratitis remains untreated some serious complications may arise. The condition may also change from being superficial (on the surface of the cornea) to affecting the deeper part of the cornea.

Some of the potential complications of Keratitis are:

  • Chronic Keratitis – The condition responds to treatment but then recurs repetitively.
  • Corneal perforation – Corneal perforation occurs when severe Keratitis leads to a small rip or tear in the cornea. This is normally treated with surgery.
  • Corneal scarring – If Keratitis affects the deeper part of the cornea there is an increased risk of scarring. As scars are permanent, this may mean decreased vision in the affected eye.

Can Keratitis lead to blindness?

Yes, but only in the most serious of cases, and/or in cases that have gone wholly untreated. Around the world, Keratitis as a result of the herpes simplex virus (HSV) is a leading cause of blindness. In developed nations, such as the United States, there are far fewer cases of HSV causing blindness.

Because there is the potential for permanent and irreversible damage to your vision, all cases of Keratitis should be diagnosed by an eye specialist and treated immediately.

Treatment for Keratitis

The treatment for Keratitis varies depending on whether the type of the condition is infectious or non-infectious. Most often, the treatment for Keratitis is eye drops. In some cases, oral medications may also be prescribed.

In the case of a cornel perforation, a surgery may be needed to repair the rip or tear. In very severe cases, a corneal transplant may be performed.

Can Keratitis be cured?

Yes, most cases of Keratitis can be cured fully so long as treatment is sought. If a prompt treatment plan is not put in place then deep scarring may occur which can require surgical intervention to fix.

If you suspect that you may have Keratitis, please make an appointment or walk in to see us here at The New Jersey Eye Center, in Bergenfield, NJ. Our experienced eye specialists and nurses have vast experience with Keratitis, both infectious and non-infectious. Avoid permanent damage or surgical intervention by making sure that Keratitis is diagnosed and treated promptly.