FIELD: medicine.
SUBSTANCE: invention refers to ophthalmosurgery and can be used for cataract extraction. High-vacuum capsulorexis, hydrodissection and hydrodelineation steps are followed with equatorial aspiration of cortical matter of cataract crystalline lens. Cortical matter between nucleus of lens and posterior capsule is kept to protect posterior capsule as nucleus being manipulated thereafter. Central nucleus is recessed with ultrasound by 2/3 of nucleus thickness. Ultrasound is disabled, while nucleus fixed by vacuum aspiration on a tip of a phacofragmentation unit, is destroyed by a chopper. Nucleus fragments are aspirated at minimal ultrasonic power output.
EFFECT: method provides lower ultrasonic exposition during cataract phacoemulsification procedure, thereby reducing operation length and risk of operative complications.
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