title: Effect of endoscopic cyclophotocoagulation on refractive outcomes when combined with cataract surgery.
abstract: OBJECTIVE
  To determine the difference between predicted and actual refractive outcomes after combined endoscopic cyclophotocoagulation and cataract surgery (phaco-ECP) in patients with open-angle glaucoma (OAG).
  
  
  METHODS
  Retrospective case-control study of patients with OAG who underwent phaco-ECP compared with cataract surgery alone.
  
  
  METHODS
  Eighty-three patients with OAG, aged 55 to 91 years, who underwent a combined phaco-ECP procedure and 58 biometry- and age-matched control patients with OAG who underwent cataract surgery alone.
  
  
  METHODS
  Patient records were retrospectively reviewed at the Department of Ophthalmology and Visual Sciences, Washington University School of Medicine in St. Louis (St. Louis, Mo.). The primary outcome was the difference in predicted and actual refractive outcomes in patients undergoing either phaco-ECP or standard cataract surgery.
  
  
  RESULTS
  Compared with phaco alone, the difference in predicted versus actual postoperative results was more myopic in the phaco-ECP group (0.029, -0.110, and -0.095 vs -0.169, -0.325, and -0.312 [p < 0.05] for Sanders, Retzlaff, Kraff/Theoretical, Hoffer Q, and Holladay, respectively). Moreover, the F test for variability showed significantly more variability in refractive outcomes in the phaco-ECP group compared with standard cataract surgery.
  
  
  CONCLUSIONS
  Patients undergoing phaco-ECP may have postoperative refractive errors that may vary from that predicted preoperatively more so than in cataract surgery alone. Surgeons may consider analyzing their results to determine whether any adjustment should be made to lens power selection when performing phaco-ECP.
authors.affiliation: Department of Ophthalmology and Visual Sciences, Washington University in St. Louis School of Medicine, St. Louis, Mo.
authors.forename: Arsham
authors.initials: A
authors.lastname: Sheybani
authors.affiliation: Wayne State University School of Medicine, Kresge Eye Institute, Detroit, Mich.. Electronic address: mozzy.saboori@gmail.com.
authors.forename: Mazeyar
authors.initials: M
authors.lastname: Saboori
authors.affiliation: Department of Ophthalmology and Visual Sciences, Washington University in St. Louis School of Medicine, St. Louis, Mo.
authors.forename: Jenna M
authors.initials: JM
authors.lastname: Kim
authors.affiliation: Department of Ophthalmology and Visual Sciences, Washington University in St. Louis School of Medicine, St. Louis, Mo.
authors.forename: Harrison
authors.initials: H
authors.lastname: Gammon
authors.affiliation: Department of Ophthalmology and Visual Sciences, Washington University in St. Louis School of Medicine, St. Louis, Mo.
authors.forename: Aaron Y
authors.initials: AY
authors.lastname: Lee
authors.affiliation: Department of Ophthalmology and Visual Sciences, Washington University in St. Louis School of Medicine, St. Louis, Mo.
authors.forename: Anjali M
authors.initials: AM
authors.lastname: Bhorade
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001699:Biometry; D016022:Case-Control Studies; D002924:Ciliary Body / Q000601:surgery*; D004724:Endoscopy; D005260:Female; D005902:Glaucoma, Open-Angle / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology; D017075:Laser Coagulation / Q000379:methods*; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D011183:Postoperative Complications; D012029:Refraction, Ocular / Q000502:physiology; D012030:Refractive Errors / Q000209:etiology / Q000503:physiopathology*; D012189:Retrospective Studies; D014065:Tonometry, Ocular