FIELD: medicine. SUBSTANCE: method involves carrying out biomicroscopic examination and determining the boundary by pressing cornea center with spatula. Dying liquid marker is placed at the place that is suspected for being the place of the old flap. Several drops of the dying fluid are placed on the cornea in several places. The place where a drop is shaped as interrupted line is to be determined as corneal flap boundary. EFFECT: enhanced reliability in visualizing corneal flap boundary.
