Types of keratitis

Keratitis - Crash! Medical Review Series (Health And Medical Video 2018).

Keratitis is a disease in which the cornea of ​​the eye is inflamed.

When keratitis in the cornea of ​​the eye is observed formation of edema and infiltrates (clumps of cellular elements with an admixture of lymph and blood).

Basically infiltrates consist of modified cells of stroma of the cornea, lymphoid cells, polynuclear leukocytes and a small number of plasma cells.

The disease leads to erosion, the cornea can lose its luster and become rough, and the epithelium, located above the infiltrate, is detached and served.

Infiltrates are superficial and deep. Surface infiltrates, having small sizes, quickly dissolve, which can not be said of deep infiltrations, in place of which turbidity of varying degrees.

During keratitis photophobia, lacrimation, blepharospasm and subsequent development of severe complications are observed. As a result, keratitis can lead to decreased or loss of vision.

The disease can have both infectious and traumatic origin.

Spring keratoconjunctivitis

Often, the cause of this type of ulcer and inflammation of the cornea is a severe allergic reaction.

Bacterial keratitis

Bacterial corneal infection occurs due to wearing contact lenses or as a result of injury. Caused by bacterial keratitis of Pseudomonas aeruginosa and Staphylococcus aureus.

Amoeba infection, also causes this type of keratitis, is the most serious infection and occurs in people wearing contact lenses. Almost all amemetic keratitis leads to blindness.

Fungal keratitis

It is caused by parasitic fungi and flows with mixed hyperemia of the eye, severe corneal syndrome and pain. In this case, both superficial and deep corneal layers are ulcerated.

Quite often, the vasculature is also exposed to inflammation. Ultimately, fungal keratitis can lead to severe vision loss and blemishes.

Viral keratitis

In 70% of cases it is caused by a herpes virus. The widespread use of this type of keratitis is due to the widespread use of corticosteroid hormones, as well as influenza epidemics, which promotes the activation of latent infections.

Herpetic keratitis

Inflammation of the cornea occurs as a result of infection with the herpes virus. Clinically, the disease has two forms: primary herpes and post-primary herpes zoster.

Herpetic keratitis may be recurrent and may leave dandritic ulcers. It is deep or superficial.

Onchocerous keratitis

This disease leads to deep lesions of the anterior and posterior eyes. The main role in the development of onchocerous keratitis play an allergic reaction.

The first sign of this type of keratitis is conjunctival-corneal syndrome. Very often onchocerchic keratitis leads to blindness.

Creeping ulcer of the cornea

Small, foreign body injuries to the cornea, which leads to the appearance of a creeping ulcer. Purulent inflammation of the lacrimal bag usually contributes to the development of this process. The course of the disease is very difficult, as a result can lead to a breakthrough cornea.


It may be caused by a long stay in the sun or near a welder. The cornea is ignited as a result of burns or intense exposure to ultraviolet radiation.

Non-ulcer keratitis

There is a swelling of the epithelium, but without the ulcer of the cornea. Occurs when the eye enters the gram-negative bacteria.

Types of keratitis

Category Of Medical Issues: Diseases