title: Lens fiber orientation during phaco chop: clinical sign to identify appropriate nucleus depth.
abstract: Phaco chop is the preferred technique for many phaco surgeons. A critical step in chopping is the surgeon's ability to impale the nucleus in the middle of the core endonucleus, which can be challenging. We describe a clinical sign in the phaco chop technique to help surgeons identify the center of the endonucleus without estimating the nucleus thickness. This technique uses the morphological structure of the lens and the lens fiber orientation to precisely gauge the depth at which the surgeon should impale and hold the nucleus for effective chopping.
  
  
  BACKGROUND
  No author has a financial or proprietary interest in any material or method mentioned.
authors.affiliation: From Narayana Nethralaya, Post-Graduate Institute of Ophthalmology, Bangalore, India. Electronic address: dr.mkurian@gmail.com.
authors.forename: Mathew Kurian
authors.initials: MK
authors.lastname: Kummelil
authors.forename: Sudeep
authors.initials: S
authors.lastname: Das
authors.forename: Deepthi T
authors.initials: DT
authors.lastname: Srikanth
authors.forename: Somshekar
authors.initials: S
authors.lastname: Nagappa
authors.forename: Rohit
authors.initials: R
authors.lastname: Shetty
authors.forename: Bhujang K
authors.initials: BK
authors.lastname: Shetty
mesh_terms: D002386:Cataract / Q000473:pathology*; D006801:Humans; D007907:Lens Nucleus, Crystalline / Q000473:pathology*; D018918:Phacoemulsification / Q000379:methods*