title: Intraoperative performance and postoperative outcomes of microcoaxial phacoemulsification. Observational study.
abstract: OBJECTIVE
  To evaluate the intraoperative performance and postoperative outcomes after microcoaxial phacoemulsification.
  
  
  METHODS
  Iladevi Cataract & IOL Research Centre, Ahmedabad, India.
  
  
  METHODS
  A prospective observational case series comprised 84 eyes with age-related uncomplicated cataract having microcoaxial phacoemulsification through a 2.2 mm clear corneal incision by a standard surgical technique. Phacoemulsification parameters (Infiniti Vision System, Alcon) were microburst width, 30 ms; preset power, 50%; vacuum, 650 mm Hg; aspiration flow rate, 25 cc/minute. A single-piece Alcon AcrySof intraocular lens was implanted with the C cartridge (Alcon) cartridge. The incision was measured at the end of surgery. Observations included surgical time (from commencement of sculpting to end of epinucleus removal), cumulative dissipated energy (CDE), wound burns, intraoperative complications, postoperative increase in mean central corneal thickness (CCT) at 1 day and 1 month, mean % decrease in endothelial cell density (ECD), absolute mean change in coefficient of variation (cv) 3 months, and uncorrected visual acuity (UCVA) at 1 day. Data were analyzed using a 1-sample t test with 95% confidence intervals (CIs).
  
  
  RESULTS
  The mean follow up was 3 months +/- 0.3 (SD). The mean incision size at the end of surgery was 2.3 +/- .09 mm; mean surgical time, 4.5 +/- 1.5 minutes; and mean CDE, 2.3 +/- 2.2 seconds. No wound burns or other intraoperative complications occurred. The postoperative CCT increased by a mean of 16 microm at 1 day (95% CI, 8-25; P = .66;) and by a mean of 3.14 microm at 1 month (95% CI, 2.26-4.05; P = .92). The ECD decreased by a mean of 5.8% (95% CI, 6.8-3.5; P = .82) and the mean coefficient of variation, by 3.3 (95% CI, 4.5-2.0; P = .65). At 1 day, the UCVA was 20/20 in 29% of cases, 20/20 to 20/40 in 58%, and 20/40 to 20/50 in 12%.
  
  
  CONCLUSIONS
  Microcoaxial phacoemulsification was safely and effectively performed, achieving consistent and satisfactory postoperative outcomes.
authors.affiliation: Iladevi Cataract & IOL Research Centre, Raghudeep Eye Clinic, Gurukul Road, Memnagar, Ahmedabad-380052, India.
authors.forename: Viraj
authors.initials: V
authors.lastname: Vasavada
authors.forename: Vaishali
authors.initials: V
authors.lastname: Vasavada
authors.forename: Shetal M
authors.initials: SM
authors.lastname: Raj
authors.forename: Abhay R
authors.initials: AR
authors.lastname: Vasavada
mesh_terms: D000180:Acrylic Resins; D002386:Cataract / Q000150:complications; D002452:Cell Count; D004728:Endothelium, Corneal / Q000473:pathology; D006801:Humans; D007431:Intraoperative Complications; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular; D008875:Middle Aged; D018918:Phacoemulsification / Q000379:methods*; D011183:Postoperative Complications; D011446:Prospective Studies; D016896:Treatment Outcome; D014792:Visual Acuity
chemical_list: D000180:Acrylic Resins