FIELD: medicine.
SUBSTANCE: instrument for measuring distances between keratotomic scars and corneal tunnel edges in cataract phacoemulsification in the patients suffered a radial keratotomy is made of stainless steel and contains a graduated scale. It also contains a plate in the form of a sphere sector 1.8-2.4 mm wide and 8.0 mm long, 0.3 mm thick, with a curvature radius of 8.0 mm having a matt surface provided with a holder attached at 100° to the plate plane. The graduated scale is provided on the inner edge of the plate facing the corneal centre and graduated at a pitch of 0.25 mm. In the centre of the graduated scale, there is a sector 1.8-2.4 mm wide limited by two graduations.
EFFECT: invention is supposed to provide accuracy when measuring the distance between the keratotomic scars and corneal tunnel edges taking into account the keratotomic scars approaching the corneal centre.
3 dwg, 2 ex
