Inside-out delineation.

A technique of achieving precise hydrodelineation, in which fluid is injected from the inside of the nucleus to the outside, is described. The desired thickness of the nucleus-epinucleus bowl can be accomplished because the right-angled cannula can direct the fluid in the desired plane. This technique is useful in eyes with posterior polar cataracts and in eyes with dense cataracts in which aggressive phacoparameters are necessary for their removal.