title: Double-chop: Modified-chop technique eliminating ultrasonic energy and vacuum for lens fragmentation.
abstract: Ultrasound (US) energy and vacuum are necessary for most nuclear disassembly techniques, but the use of US energy and vacuum poses potential risks to intracameral structures, including the corneal endothelium, iris, zonular fibers, and posterior capsule. A wide range of techniques involve sculpting, chopping, prechopping, and femtosecond laser-assisted fragmentation. However, these techniques are limited by high US energy, high vacuum to grab and hold the lens, additional instrumentation, or cost. A modified chop approach that bypasses the traditional rules of chopping is presented. The approach is not only effective, but also potentially safer than current techniques because it exposes the eye to less US energy, less vacuum, and less intracapsular manipulation.
  
  
  
  The author has no financial or proprietary interest in any material or method mentioned.
authors.affiliation: From Professional Eye Associates, Dalton, Georgia, USA. Electronic address: kim@professionaleye.com.
authors.forename: Dooho Brian
authors.initials: DB
authors.lastname: Kim
mesh_terms: D004728:Endothelium, Corneal; D006801:Humans; D019654:Lens Implantation, Intraocular; D007908:Lens, Crystalline; D018918:Phacoemulsification; D014465:Ultrasonics; D014618:Vacuum