FIELD: medical engineering. SUBSTANCE: device has bent tube. The bending point divides the tube into two portions of unequal length. Distal portion length is in (5-7):1 proportion to the cannula beginning portion length. Bent area angle is equal to 30-40 deg. Operation end of the cannula is beveled and belongs to the plane running in parallel to the plane of the opposite cannula end face. EFFECT: avoided eye injuries; accelerated operation process; improved surgeon working conditions. 2 dwg
