title: Corneal topographic alterations after selective laser trabeculoplasty.
abstract: OBJECTIVE
  To investigate the presence of corneal alterations in the long term among patients with primary open-angle glaucoma (POAG) after a single session of selective laser trabeculoplasty (SLT) treatment.
  
  
  METHODS
  The files of the POAG patients who had been treated with SLT were evaluated retrospectively. The Pretreatment Scheimpflug corneal topographic (SCT) findings were then compared with the post-treatment findings.
  
  
  RESULTS
  The files of 33 patients were eligible. The changes in central corneal thickness, thinnest point of cornea, and posterior corneal asphericity at 5 and 8 mm were statistically significant (p = 0.03, 0.01, 0.02, and 0.04 respectively). On the other hand, the simulated K, anterior 3 mm K, anterior 5 mm K, posterior 3 mm K, posterior 5 mm K, anterior asphericity at 3 mm, posterior asphericity at 3 mm, and Zernike values did not change significantly following the treatment (p = 0.19, 0.08, 0.1, 0.3, 0.2, 0.75, 0.09, and 0.3 respectively).
  
  
  CONCLUSIONS
  SLT can slightly alter pretreatment SCT findings in 3-6 months. Clinicians should wait for at least 6 months after SLT before performing any subsequent surgeries that depend on corneal parameters.
authors.affiliation: Department of Ophthalmology, Bagcilar Training and Research Hospital, Bagcilar Merkez, 34200, Istanbul, Turkey. drkursatalay@gmail.com.
authors.forename: Kursat
authors.identifier: http://orcid.org/0000-0002-1706-3679
authors.initials: K
authors.lastname: Atalay
authors.affiliation: Department of Ophthalmology, Bagcilar Training and Research Hospital, Bagcilar Merkez, 34200, Istanbul, Turkey.
authors.forename: Ahmet
authors.initials: A
authors.lastname: Kirgiz
authors.affiliation: Department of Ophthalmology, Bagcilar Training and Research Hospital, Bagcilar Merkez, 34200, Istanbul, Turkey.
authors.forename: Kubra
authors.initials: K
authors.lastname: Serefoglu Cabuk
authors.affiliation: Department of Ophthalmology, Bagcilar Training and Research Hospital, Bagcilar Merkez, 34200, Istanbul, Turkey.
authors.forename: Havva
authors.initials: H
authors.lastname: Erdogan Kaldirim
mesh_terms: D000328:Adult; D000368:Aged; D003315:Cornea / Q000473:pathology*; D019781:Corneal Topography / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D005902:Glaucoma, Open-Angle / Q000175:diagnosis / Q000601:surgery*; D006801:Humans; D053685:Laser Therapy / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D012189:Retrospective Studies; D013997:Time Factors; D014130:Trabeculectomy / Q000379:methods*
keywords: Cornea; Corneal topography; Glaucoma; Refractive surgical procedures; Trabeculoplasty