Hydro-delineation is a useful technique which allows us to separate a central endo-nucleus from an epi-nuclear shell. In this case, the patient has a very dense but very small endo-nucleus that has caused a large myopic refractive shift. The patient is also relatively young and is very myopic with an axial length of more than 30 mm. The double hydro-delineation technique is used to further separate a small, dense endo-nucleus from the epi-nuclear shell. This creates double golden rings and two epi-nuclear shells. We carefully remove the central endo-nucleus with the phaco probe and chopper, and then use just gentle aspiration to remove all of the epi-nuclear pieces.
Click below to learn about the double hydro-delineation technique: