title: Comparison of choroidal thickness changes following intravitreal dexamethasone, ranibizumab, and triamcinolone in eyes with retinal vein occlusion.
abstract: OBJECTIVE
  To evaluate short-term choroidal thickness changes following intravitreal dexamethasone implant (DEX), ranibizumab (RAN), and triamcinolone acetonide (TA) in eyes with retinal vein occlusion (RVO) and macular edema (ME).
  
  
  METHODS
  In this prospective study, 35 eyes of 35 patients with RVO and ME who were treated with intravitreal injections of DEX, RAN, and TA were included. Choroidal thickness was measured using semiautomated segmentation of enhanced depth imaging with optical coherence tomography at fovea and parafoveal areas. Changes in choroidal thickness following treatment were compared statistically.
  
  
  RESULTS
  Choroidal thickness decreased following DEX, RAN, and TA treatments (all p&gt;0.05). In the DEX group, at the first month nasal 1,500 µm (N11,500) and at the third month subfoveal (SF3) and nasal 500 µm (N3500) choroidal thickness revealed a significant reduction compared to RAN and TA groups (all p&lt;0.05). In the TA group, choroidal thickness showed a significant reduction only at nasal 1,500 µm (N31,500) at the third month (p&lt;0.05).
  
  
  CONCLUSIONS
  Choroidal thickness was decreased in all 3 groups. The DEX and TA groups showed a significant reduction at some areas. Ranibizumab had the smallest effect on choroidal thickness after 3 months among all groups.
authors: Department of Ophthalmology, Kırıkkale University School of Medicine, Kırıkkale - Turkey.
authors: Erhan
authors: E
authors: Yumusak
authors: Department of Ophthalmology, Kırıkkale University School of Medicine, Kırıkkale - Turkey.
authors: Kemal
authors: K
authors: Ornek
authors: Department of Ophthalmology, Kırıkkale University School of Medicine, Kırıkkale - Turkey.
authors: Nevin H
authors: NH
authors: Dikel
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D020533:Angiogenesis Inhibitors / Q000627:therapeutic use*; D002829:Choroid / Q000473:pathology*; D003907:Dexamethasone / Q000008:administration & dosage*; D004343:Drug Implants; D005260:Female; D005938:Glucocorticoids / Q000008:administration & dosage*; D006801:Humans; D058449:Intravitreal Injections; D008269:Macular Edema / Q000188:drug therapy; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D000069579:Ranibizumab / Q000627:therapeutic use*; D012170:Retinal Vein Occlusion / Q000188:drug therapy*; D041623:Tomography, Optical Coherence; D014222:Triamcinolone Acetonide / Q000008:administration & dosage*; D014792:Visual Acuity
chemical_list: D020533:Angiogenesis Inhibitors; D004343:Drug Implants; D005938:Glucocorticoids; D003907:Dexamethasone; D014222:Triamcinolone Acetonide; D000069579:Ranibizumab