Bacterial keratitis usually manifests itself as a creeping ulcer. Most often it is caused by pneumococcus, sometimes by streptococci and staphylococci contained in the stagnant contents of the lacrimal sac and conjunctival cavity.
Rosacea keratitis (keratitis rosacea) is a frequently recurring disease. It occurs in patients with acne rasacea on the face. The etiology of the skin disease is unknown.
Keratitis in hypo- and avitaminosis is caused by a violation of general metabolic processes in the body. They occur as a result of insufficient intake of vitamins or poor absorption of certain groups of vitamins.
Neuroparalytic keratitis develops after the first branch of the trigeminal nerve is transected, sometimes after injections into the Gasserian ganglion or after its extirpation.
Keratitis and its consequences account for 20-25% of outpatients. Causes of keratitis are bacterial fungal flora, viral infections, physical, chemical factors, allergic reactions, metabolic disorders.
Keratoglobus is a spherical cornea. The cause of the disease, as with keratoconus, is a 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, stretching out in the form of a cone.
Corneal diseases account for 25-30% of all eye diseases. The causes of corneal diseases are: open position of the cornea (accessible to external factors); anatomical and embryonic connection with the conjunctiva, sclera and vascular tract; absence of vessels in the cornea and slow metabolism;
