title: Effect of a new cohesive ophthalmic viscosurgical device on corneal protection and intraocular pressure in small-incision cataract surgery.
abstract: OBJECTIVE
  To compare the corneal protective and intraocular pressure (IOP) effects of a new cohesive ophthalmic viscosurgical (OVD), Neocrom Cohesive (sodium hyaluronate 1.4%), with those of Healon (sodium hyaluronate 1.0%) in cataract surgery.
  
  
  METHODS
  Department of Ophthalmology, Medical University of Vienna, Vienna, Austria.
  
  
  METHODS
  This randomized patient-masked examiner-masked study with fellow-eye comparison comprised 29 cataract surgery patients. Surgery was performed with Neocrom Cohesive in 1 eye and Healon in the other eye. Central corneal thickness (CCT) was measured preoperatively and 1 day and 3 months postoperatively; endothelial cell density (ECD), preoperatively and 3 months postoperatively; and IOP, preoperatively and 6 hours and 1 day postoperatively.
  
  
  RESULTS
  The mean CCT change from preoperatively to postoperatively in the Neocrom Cohesive, respectively, group and Healon group was +16.0 microm +/- 25.7 (SD) (P<.01) and +7.0 +/- 17.1 microm (P<.05), respectively, at 1 day and -5.7 +/- 10.8 microm (P<.01) and -4.7 microm +/- 9.5 microm) (P<.01), respectively, at 3 months. The mean ECD change at 3 months was 8 +/- 155 cells/mm(2) in the Neocrom Cohesive group (P = .8) and -46 +/- 139 cells/mm(2) in the Healon group (P = .08). The mean IOP increase was +2.2 +/- 3.5 mm Hg (P<.01) and +1.4 +/- 4.2 mm Hg (P = .14), respectively, 6 hours postoperatively and +0.9 +/- 4.3 mm Hg (P = .37) and 0.0 +/- 3.5 mm Hg (P = .77), respectively, at 1 day.
  
  
  CONCLUSIONS
  There was no significant difference between Neocrom Cohesive and Healon in the changes in CCT, ECD, and IOP after cataract surgery.
authors.affiliation: Department of Ophthalmology, Medical University of Vienna, Vienna, Austria.
authors.forename: Thomas
authors.initials: T
authors.lastname: Neumayer
authors.forename: Ana
authors.initials: A
authors.lastname: Prinz
authors.forename: Oliver
authors.initials: O
authors.lastname: Findl
mesh_terms: D000368:Aged; D019923:Capsulorhexis / Q000379:methods; D002452:Cell Count; D003316:Corneal Diseases / Q000517:prevention & control*; D004311:Double-Blind Method; D004728:Endothelium, Corneal / Q000187:drug effects* / Q000473:pathology; D006801:Humans; D006820:Hyaluronic Acid / Q000008:administration & dosage* / Q000009:adverse effects; D007429:Intraocular Pressure / Q000187:drug effects*; D019654:Lens Implantation, Intraocular; D008866:Microsurgery / Q000379:methods*; D009883:Ophthalmic Solutions / Q000008:administration & dosage* / Q000009:adverse effects; D018918:Phacoemulsification / Q000379:methods*
chemical_list: D009883:Ophthalmic Solutions; D006820:Hyaluronic Acid