title: Evaluation of the impact of Nd:YAG laser posterior capsulotomy on ocular pulse amplitude and anterior segment morphology.
abstract: OBJECTIVE
  Posterior capsular opacification (PCO) is the most frequent complication after cataract surgery. The most used method in order to disrupt the opacified posterior capsule is Nd-YAG laser posterior capsulotomy. Our aim was to evaluate the impact of Nd-YAG laser posterior capsulotomy on ocular pulse amplitude (OPA), central corneal thickness (CCT), corneal volume (CV), iridocorneal angle (ICA), and anterior chamber depth (ACD).
  
  
  METHODS
  Thirty-three eyes of 30 pseudophakic patients who underwent Nd-YAG capsulotomy due to posterior capsule opacification, were included in this prospective cross-sectional consecutive case series. The OPA was measured with the Pascal dynamic contour tonometer. The CCT, CV, ICA, and ACD measurements were taken with the Scheimpflug imaging system (Pentacam HR). The examinations were performed preoperatively, and repeated at the postoperative first hour, week, and month.
  
  
  RESULTS
  The mean OPA, ICA, and ACD values did not change statistically significantly after the posterior capsulotomy (P > 0.05). The mean CCT increased markedly and the mean CV increased slightly after one hour from the capsulotomy (P = 0.001 and P = 0.02, respectively), and then returned to the baseline values at the first week and first month visits (P > 0.05).
  
  
  CONCLUSIONS
  Nd:YAG capsulotomy does not significantly alter OPA, ICA, and ACD; but it causes temporary increase of CCT and CV in the short term.
authors.affiliation: Ophthalmology Department, Pamukkale University, Denizli, Turkey.
authors.forename: Gökhan
authors.initials: G
authors.lastname: Pekel
authors.forename: Ramazan
authors.initials: R
authors.lastname: Yağcı
authors.forename: Semra
authors.initials: S
authors.lastname: Acer
authors.forename: Seyfullah
authors.initials: S
authors.lastname: Özdemir
authors.forename: Nihat
authors.initials: N
authors.lastname: Sayin
mesh_terms: D000869:Anterior Eye Segment / Q000033:anatomy & histology*; D058442:Capsule Opacification / Q000601:surgery*; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D007903:Lens Capsule, Crystalline / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D014065:Tonometry, Ocular
keywords: corneal volume; dynamic contour tonometry; iridocorneal angle; laser capsulotomy; posterior capsular opacification