title: Assessment of intraoperative complications in intumescent cataract surgery using 2 ophthalmic viscosurgical devices and trypan blue staining.
abstract: OBJECTIVE
  To evaluate intraoperative complications during capsulorhexis and phacoemulsification in intumescent white cataracts using 2 ophthalmic viscosurgical device (OVD) techniques.
  
  
  METHODS
  Ruhr University Eye Clinic, Bochum, Germany.
  
  
  METHODS
  Case series.
  
  
  METHODS
  Patients with eyes with intumescent white cataract were recruited and placed in 2 groups. After capsule staining using trypan blue, a central indentation of the anterior lens capsule was created in the eyes in Group 1 using a medium-viscosity OVD (Healon 1.0%) and in the eyes in Group 2 using both medium-viscosity (1.0%) and high-viscosity (2.3%) OVDs. Then a continuous curvilinear capsulorhexis (CCC) was performed. The outcomes measured were the horizontal and vertical diameters of the CCC, the deviation from the target diameter, and intraoperative complications.
  
  
  RESULTS
  In Group 1 (21 eyes), deviation from the target CCC diameter occurred in 12 eyes (10 oversized, 2 undersized), and in Group 2 (20 eyes) deviation occurred in 6 eyes (4 oversized, 2 undersized). In Group 1, capsule tears appeared in 2 eyes and in 1 eye, the procedure had to be converted to extracapsular cataract extraction with anterior vitrectomy. In Group 2, there were no capsule tears.
  
  
  CONCLUSIONS
  Using 2 different OVDs and placing the high-viscosity OVD centrally led to safe indentation of the anterior lens capsule and reduced the risk for CCC enlargement and capsule tear during surgery.
  
  
  BACKGROUND
  No author has a financial or proprietary interest in any material or method mentioned.
authors.affiliation: From the Department of Ophthalmology (Hengerer, Kohnen), Goethe University, Frankfurt, and the Department of Ophthalmology (Dick, Conrad-Hengerer), Ruhr University, Bochum, Germany. Electronic address: fritz.hengerer@kgu.de.
authors.forename: Fritz H
authors.initials: FH
authors.lastname: Hengerer
authors.affiliation: From the Department of Ophthalmology (Hengerer, Kohnen), Goethe University, Frankfurt, and the Department of Ophthalmology (Dick, Conrad-Hengerer), Ruhr University, Bochum, Germany.
authors.forename: H Burkhard
authors.initials: HB
authors.lastname: Dick
authors.affiliation: From the Department of Ophthalmology (Hengerer, Kohnen), Goethe University, Frankfurt, and the Department of Ophthalmology (Dick, Conrad-Hengerer), Ruhr University, Bochum, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Kohnen
authors.affiliation: From the Department of Ophthalmology (Hengerer, Kohnen), Goethe University, Frankfurt, and the Department of Ophthalmology (Dick, Conrad-Hengerer), Ruhr University, Bochum, Germany.
authors.forename: Ina
authors.initials: I
authors.lastname: Conrad-Hengerer
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D057866:Anterior Capsule of the Lens / Q000473:pathology*; D019923:Capsulorhexis / Q000379:methods; D004396:Coloring Agents; D005260:Female; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage* / Q000737:chemistry; D007431:Intraoperative Complications; D019654:Lens Implantation, Intraocular; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification / Q000379:methods*; D011446:Prospective Studies; D014343:Trypan Blue; D014783:Viscosity; D055675:Viscosupplements / Q000008:administration & dosage* / Q000737:chemistry; D014792:Visual Acuity; D014821:Vitrectomy
chemical_list: D004396:Coloring Agents; D055675:Viscosupplements; D006820:Hyaluronic Acid; D014343:Trypan Blue