What is the Difference Between Keratitis and Conjunctivitis?

The main difference between keratitis and conjunctivitis lies in the specific parts of the eye they affect.

Keratitis refers to the inflammation of the cornea, which is the clear, dome-shaped covering that protects the iris and pupil of the eye. Keratitis can be caused by infections, injuries, or wearing contact lenses for too long. It can lead to pain, redness, and blurred vision, and if left untreated, it may result in serious complications and permanent vision damage.

Conjunctivitis, also known as "pink eye," is the inflammation of the conjunctiva, which is the thin, transparent membrane covering the white part of the eye and the inner surface of the eyelid. Conjunctivitis is commonly caused by viral or bacterial infections, allergies, or irritants. Symptoms of conjunctivitis may include redness, irritation, and discharge, but it generally does not cause permanent vision problems.

When both keratitis and conjunctivitis are present at the same time, the condition is referred to as keratoconjunctivitis. Treatment for these conditions depends on the cause and severity of the symptoms, and may include artificial tears, antibiotic, antiviral, or antifungal eye drops, or in more severe cases, oral medications.

Comparative Table: Keratitis vs Conjunctivitis

Here is a table comparing the differences between keratitis and conjunctivitis:

Keratitis is the inflammation of the cornea, while conjunctivitis is the inflammation of the conjunctiva. Keratitis is generally more painful and can have a greater impact on vision, whereas conjunctivitis is less painful and typically does not threaten vision. A trained eye care professional can diagnose these conditions using specialized equipment and examinations.