Surgical Management of a Dropping Nucleus

  • Ulrich Spandau


This chapter reports about the surgical management a dropping nucleus


Trocar surgery Trocar Pars plana Dropping nucleus Viscolevitation 

A dropped nucleus is the most dreaded complication of a cataract surgeon. If you learn this surgical technique, then you can manage the vast majority of dropped nucleus cases on your own.

This technique requires swift action. As soon as you observe a posterior capsular rent, and/or a dropping nucleus then stop phacoemulsification. If the nucleus remains stable, then insert a trocar cannula. Then insert the viscoelastic cannula through the trocar cannula, inject viscoelastics behind the nucleus and then elevate the nucleus into the anterior chamber. Remark: The maneuver is easier, if you straighten the angled viscoelastic canula.

Remark: If you have no time to insert a trocar cannula, then attach a 27G needle cannula to the viscoelastic syringe, pierce the sclera—like an intravitreal injection—and inject viscoelastics (Viscoat®) behind the nucleus. Then lift the nucleus into the anterior chamber (Fig. 12.1).
Fig. 12.1

Dropping nucleus. (a) A subluxated nucleus is difficult to elevate from the limbus because you have to access the nucleus from the back. (b) The nucleus is easy to reach from pars plana. Insert a trocar, inject viscoelastics behind the nucleus and elevate it forward inside the anterior chamber (viscolevitation)

Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • Ulrich Spandau
    • 1
  1. 1.Department of OphthalmologyUppsala University HospitalUppsalaSweden

Personalised recommendations