title: Determination of anterior segment changes with Pentacam after phacoemulsification in eyes with primary angle-closure glaucoma.
abstract: BACKGROUND
  To investigate changes of anterior segment morphology in primary angle-closure glaucoma after phacoemulsification using the Pentacam system.
  
  
  METHODS
  Prospective, interventional study, Zhongshan Hospital of Sun Yat-sen University.
  
  
  METHODS
  Eighty-five eyes from 60 patients with primary angle-closure glaucoma undergoing phacoemulsification.
  
  
  METHODS
  Intraocular pressure was measured by Goldmann applanation tonometry. Anterior segment morphology was assessed using the Pentacam camera.
  
  
  METHODS
  The intraocular pressure, central anterior chamber depth, peripheral anterior chamber depth, anterior chamber volume, pupil diameter and anterior chamber angle preoperative and 3 months postoperative.
  
  
  RESULTS
  A total 78 eyes of 55 patients with primary angle-closure glaucoma were included in the analysis. Thirty-two eyes (41.0%) had acute primary angle-closure glaucoma, and 46 eyes (59.0%) had chronic primary angle-closure glaucoma. In both groups, statistically significant decreases in intraocular pressure and increases in anterior chamber volume, central anterior chamber depth, peripheral anterior chamber depth and anterior chamber angle inferiorly, nasally, temporally and superiorly were observed at 3 months after phacoemulsification (all P < 0.001).
  
  
  CONCLUSIONS
  Phacoemulsification induces significant changes in anterior segment morphology in primary angle-closure glaucoma accompanied by a significant fall in intraocular pressure in the short term.
authors.affiliation: Zhongshan Hospital of Sun Yat-sen University, Zhongshan, China. zhaoqi0001@gmail.com
authors.forename: Qi
authors.initials: Q
authors.lastname: Zhao
authors.forename: Nai-yang
authors.initials: NY
authors.lastname: Li
authors.forename: Xing-wu
authors.initials: XW
authors.lastname: Zhong
mesh_terms: D000208:Acute Disease; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000869:Anterior Eye Segment / Q000473:pathology*; D002386:Cataract / Q000150:complications* / Q000503:physiopathology; D005260:Female; D015812:Glaucoma, Angle-Closure / Q000150:complications* / Q000503:physiopathology; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D010781:Photography / Q000295:instrumentation*; D011446:Prospective Studies; D014065:Tonometry, Ocular