title: Evaluation of anterior segment parameter changes using the Pentacam after uneventful phacoemulsification.
abstract: OBJECTIVE
  This study set out to evaluate the influences of uneventful phacoemulsification on the anterior segment parameters obtained with the Pentacam rotating Scheimpflug camera and intraocular pressure (IOP).
  
  
  METHODS
  A total of 42 eyes of 34 patients (26 men, eight women) were evaluated preoperatively, and at 1, 3 and 6 months postoperatively with the Pentacam. Intraocular pressure was measured with the Goldmann applanation tonometer. The non-parametric paired t-test was used to compare preoperative and 1-, 3- and 6-month postoperative measurements of anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA) width, central corneal thickness (CCT), the central 3-, 5- and 7-mm corneal volume (CV), pupil size, and IOP. Pearson's correlation test was used to evaluate the relationships between IOP and ACD, ACV and ACA width.
  
  
  RESULTS
  The differences between ACD, ACV, ACA and IOP values taken preoperatively and those taken postoperatively at 1, 3 and 6 months were statistically significant (p<0.05). The differences between CCT, central 3-, 5- and 7-mm CV, and pupil size measurements taken preoperatively and those taken postoperatively at 1, 3 and 6 months were not statistically significant (p>0.05). The decrease in IOP was not correlated with the changes in ACD, ACV and ACA (p>0.05).
  
  
  CONCLUSIONS
  Uneventful phacoemulsification significantly reduced IOP, increased ACD and ACV, and widened the ACA. However, alterations in CV, CCT and pupil size values were not statistically significant. Alterations in ACD, ACV, ACA and IOP remain stable after the first month of surgery.
authors.affiliation: Department of Ophthalmology, Inonu University School of Medicine, Malatya, Turkey. sdoganay@inonu.edu.tr
authors.forename: Selim
authors.initials: S
authors.lastname: Doganay
authors.forename: Penpegul
authors.initials: P
authors.lastname: Bozgul Firat
authors.forename: Sinan
authors.initials: S
authors.lastname: Emre
authors.forename: Saim
authors.initials: S
authors.lastname: Yologlu
mesh_terms: D000368:Aged; D000867:Anterior Chamber / Q000473:pathology*; D003315:Cornea / Q000473:pathology*; D005260:Female; D006801:Humans; D007429:Intraocular Pressure; D019654:Lens Implantation, Intraocular; D008297:Male; D015814:Ocular Hypotension / Q000209:etiology*; D009929:Organ Size; D018918:Phacoemulsification; D010781:Photography / Q000379:methods*; D011183:Postoperative Complications; D011446:Prospective Studies; D014065:Tonometry, Ocular; D014792:Visual Acuity / Q000502:physiology