Leucoma (thorn) is a persistent opacification of the cornea due to the development of a connective tissue scar after inflammation or injury. A leucoma may occupy the entire cornea or part of it (Fig.). Vision goes down. A leucoma, spliced with the iris, can lead to secondary glaucoma (see). Treatment leykoma surgical, mainly - keratoplasty (see).
Leucoma (leucoma corneae; from the Greek. Leukos - white; snn. Cornea ghost) - cicatricial change of the connective tissue stroma of the cornea after inflammation or injury. Scarring violates the correctness of the location of the bundles of connective tissue of the corneal stroma, which causes its transparency to be disturbed. Not only with coarse scars, but also with slight corneal opacities (nubecula and macula corneae) there is a strong light scattering that interferes with the clarity of vision. In case of leukemia, due to a deep ulcer or injury to the cornea, the tissue of the latter becomes thinner; this cornea is not able to withstand the action of intraocular pressure, stretches and bulges. Staphyloma of the cornea develops (see).
For the treatment of leucoma, various local resolving agents are used - dionin (3-5% solution), yellow mercury ointment (1%), iontophoresis with iodine, eye diathermy. Tissue therapy is more effective - therapeutic layering of canned corneal tissue. With extensive leucomas, an operation of keratoplasty is shown (see), which increasingly displaces the purely cosmetic method of tattooing a scar-reborn cornea with ink or chlorine gold.