FIELD: medicine.
SUBSTANCE: invention relates to medicine, namely to ophthalmology and can be used in diagnostics of eye cornea disease and injury. For the invention implementation chitosan succinate is inserted into the aqueous solution of fluorescein in the following ratio, wt % rating: fluorescein - 0.005-0.1; chitosan succinate - 1.0-1.5; distilled water - the rest.
EFFECT: use of the invention provides for formation of stable precorneal colouring membrane of prolonged action.
2 ex
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