title: Early Postoperative Effects of Cataract Surgery on Anterior Segment Parameters in Primary Open-Angle Glaucoma and Pseudoexfoliation Glaucoma.
abstract: OBJECTIVE
  To compare the effect of cataract surgery on anterior segment parameters measured by optical biometry in primary open-angle glaucoma (POAG) and pseudoexfoliation glaucoma (PXG).
  
  
  METHODS
  Twenty-five eyes of 25 patients with POAG and 29 eyes of 29 patients with PXG who had uncomplicated phacoemulsification and posterior chamber intraocular lens implantation surgery were included to our prospective study. Central corneal thickness (CCT), anterior chamber depth (ACD) and axial length (AL) were measured with an optical biometer preoperatively and at 1 month postoperatively. The pre- and postoperative values of intraocular pressure (IOP) and the anterior segment parameters and the differences between POAG and PXG were compared statistically by paired t, independent t and chi-square tests.
  
  
  RESULTS
  The mean values of preoperative CCT (p=0.042) and ACD (p=0.012) were significantly lower in the PXG than in the POAG group. In the PXG group, IOP decreased (p=0.001) but CCT (p=0.03) and ACD (p=0.001) increased significantly postoperatively; AL did not change significantly. In the POAG group, IOP decreased (p=0.01) and ACD (p=0.004) increased significantly postoperatively, while AL and CCT did not change significantly. There were no significant differences in the pre- to postoperative changes in IOP (p=0.76), AL (p=0.44) and CCT (p=0.52) values between the two groups. However, the postoperative increase in ACD was larger in the PXG group (p=0.03).
  
  
  CONCLUSIONS
  Cataract surgery may cause some changes in IOP and anterior segment parameters like ACD and CCT postoperatively in eyes with POAG and PXG, and these changes may differ between eyes with PXG and POAG.
authors: Ulucanlar Eye Research and Training Hospital, Ophthalmology Clinic, Ankara, Turkey.
authors: Ufuk
authors: U
authors: Elgin
authors: Ulucanlar Eye Research and Training Hospital, Ophthalmology Clinic, Ankara, Turkey.
authors: Emine
authors: E
authors: Şen
authors: Osmangazi University Faculty of Medicine, Department of Ophthalmology, Eskişehir, Turkey.
authors: Tülay
authors: T
authors: Şimşek
authors: Ulucanlar Eye Research and Training Hospital, Ophthalmology Clinic, Ankara, Turkey.
authors: Kemal
authors: K
authors: Tekin
authors: Ulucanlar Eye Research and Training Hospital, Ophthalmology Clinic, Ankara, Turkey.
authors: Pelin
authors: P
authors: Yılmazbaş
keywords: Cataract; anterior segment parameters; optical biometer; primary open-angle glaucoma; pseudoexfoliation glaucoma