title: [Examination of resistance of the lens capsule against the waterjet].
abstract: BACKGROUND
  Although cataract surgery is highly developed today, there are still problems such as secondary cataract. In polishing the posterior capsule lens, epithelial cells often remain, causing secondary cataracts. Additionally, there are the problems of tissue heating and endothelial cell loss during phacoemulsification by ultrasound. This could be another field for improvement of cataract surgery by using the waterjet.
  
  
  METHODS
  After removing the cornea of freshly enucleated porcine bulbs, we used the water jet from 4 to 12 bar. The hit angel on the capsule varied between 45 degrees and 90 degrees.
  
  
  RESULTS
  Rupture of the posterior capsule occurred at a mean of 8.5 bar using the jet at 45 degrees and a mean of 8.6 bar using the jet at 90 degrees.
  
  
  CONCLUSIONS
  The waterjet pressure should not be over 4 bar during polishing of the posterior capsule.
authors.affiliation: Universitäts-Augenklinik, Halle-Wittenberg, Halle.
authors.forename: F
authors.initials: F
authors.lastname: Wilhelm
authors.forename: A
authors.initials: A
authors.lastname: Holtkamp
authors.forename: A
authors.initials: A
authors.lastname: Theurer
authors.forename: J
authors.initials: J
authors.lastname: Darman
authors.forename: G
authors.initials: G
authors.lastname: Duncker
authors.forename: L
authors.initials: L
authors.lastname: Wilhelm
mesh_terms: D000818:Animals; D002386:Cataract / Q000517:prevention & control*; D007903:Lens Capsule, Crystalline; D013508:Ophthalmologic Surgical Procedures / Q000295:instrumentation*; D018918:Phacoemulsification; D013552:Swine; D014867:Water / Q000008:administration & dosage*
chemical_list: D014867:Water