FIELD: medicine, ophthalmology.
SUBSTANCE: one should perform tunnel incision without lancing anterior chamber and subtotal vitrectomy through transciliary access followed by introduction of perfluoroorganic compound (PFOC) and directing the lens towards iris, then comes sealing the access into vitreous body cavity, filling in anterior chamber with viscoprotector through tunnel access and removal of lens after preliminary mechanical fragmentation. IOL should be implanted, PFOC should be substituted with physiological solution, due to PFOC one should direct the lens towards iris tightly to achieve touching. Lens should be partially, by one fourth or one third, withdrawn into anterior chamber by turning with equatorial plane for 30-50 deg. around the axis located in horizontal plane and coming through the center of lenticular nucleus being perpendicular to incision. Then one should cut off a segment exposed above iris with the help of special pincers, moreover, pincers' branches work in the plane being perpendicular to equatorial lenticular plane. Fragment should be withdrawn outside. Lens should be turned for the angle of 90 deg. in horizontal plane and again one should repeat actions to obtain another equatorial lenticular segment above iris to cut it off by decreasing, thus, the lens by 3-4 times. Central segment should be removed at the last stage. The method enables to atraumatically remove dislocated lens with dense nucleus through minor incision.
EFFECT: higher efficiency of therapy.
1 cl, 1 ex
Authors
Dates
2004-08-20—Published
2003-03-20—Filed