Fungal keratitis develops rarely, they are caused by mold, radiant and yeast fungi. Infection occurs after minor damage to the cornea, more often in rural areas.
Bacterial keratitis usually manifests as a creeping ulcer. Most often it is caused by pneumococcus, sometimes - streptococci and staphylococci, contained in the stagnant contents of the lacrimal sac and conjunctival cavity.
Rosacea-keratitis (keratitis rosacea) is often a recurrent disease. Occurs in patients with acne rasacea on the face. The etiology of skin disease is unknown.
Keratitis in hypo- and avitaminosis is caused by a violation of the general metabolic processes in the body. They arise due to the receipt of insufficient amounts of vitamins or poor assimilation of individual groups of vitamins.
Neuroparalytic keratitis develops after crossing the first branch of the trigeminal nerve, sometimes after injections into the region of the Gasser node or after its extirpation.
Keratites and their consequences account for 20-25% of outpatients. The causes of keratitis are bacterial fungal flora, viral infections, physical, chemical factors, allergic reactions, metabolic disorders.
Keratoglobus is a globular cornea. The cause of the disease, as well as with keratoconus, is the genetically determined weakness of the elastic properties of the cornea.
Keratoconus, or conical cornea, is a genetically determined pathology of the cornea, the external manifestation of which is a change in its shape. The cornea becomes thinner in the center, stretched out in the form of a cone.
Corneal diseases account for 25-30% of all eye diseases. Causes of the cornea are: open position of the cornea (available to external factors); anatomical and embryonic connection with conjunctiva, sclera and vascular tract; absence of corneal vessels and delayed metabolism;
