Cobidystrophy of the cornea is a rare hereditary eye disease, found only among immigrants from Africa and Israel. This anomaly leads to changes in corneal tissue. Also known as corneal hyperplasia or corneal melasia. Today, several forms of development of the disease are known: a spot, a plaque and a pigmented lesion; if the doctor sees the last of the options, he will most likely discover a very high degree of thinning of the structure of the eye tissue, the appearance of folds and cracks. Signs of disease progression can also be found on the retina and underneath