title: Keratometric alterations following the 25-gauge transconjunctival sutureless pars plana vitrectomy versus the conventional pars plana vitrectomy.
abstract: OBJECTIVE
  To assess the alterations in keratometric astigmatism following the 25-gauge transconjunctival sutureless pars plana vitrectomy versus the conventional pars plana vitrectomy.
  
  
  METHODS
  Sixteen consecutive patients were enrolled into the study. Conventional vitrectomy was applied to eight of the cases and 25-gauge transconjunctival sutureless vitrectomy was performed in eight patients. Keratometry was performed before and after the surgery.
  
  
  RESULTS
  In the 25-gauge transconjunctival sutureless pars plana vitrectomy group, statistically significant changes were not observed in the corneal curvature in any post-operative follow-up measurement (p > 0.05); whereas in the conventional pars plana vitrectomy group, statistically significant changes were observed in the first postoperative day (p = 0.01) and first postoperative month (p = 0.03). We noted that these changes returned to baseline in three months (p = 0.26).
  
  
  CONCLUSIONS
  Both 25-gauge transconjunctival sutureless and conventional pars plana vitrectomy are effective surgical modalities for selected diseases of the posterior segment. Surgical procedures are critical for the visual rehabilitation of the patients. The post-operative corneal astigmatism of the vitrectomised eyes can be accurately determined at least two months post-operatively.
authors: SB Ankara Ulucanlar Eye Education and Research Hospital, Ankara, Turkey. mcitirik@hotmail.com
authors: Mehmet
authors: M
authors: Citirik
authors: Cosar
authors: C
authors: Batman
authors: Tolga
authors: T
authors: Bicer
authors: Orhan
authors: O
authors: Zilelioglu
mesh_terms: D000368:Aged; D001251:Astigmatism / Q000473:pathology*; D003228:Conjunctiva / Q000601:surgery; D003315:Cornea / Q000473:pathology; D019781:Corneal Topography; D005128:Eye Diseases / Q000601:surgery; D005260:Female; D006801:Humans; D007429:Intraocular Pressure; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D014792:Visual Acuity; D014821:Vitrectomy / Q000379:methods*; D014822:Vitreous Body / Q000601:surgery