title: Posterior subtenon injection of triamcinolone acetonide after phacoemulsification in a patient with X-linked retinoschisis.
abstract: OBJECTIVE
  To describe a case of X-linked retinoschisis with pseudophakic cystoid macular edema treated by posterior subtenon injection of triamcinolone acetonide.
  
  
  METHODS
  The patient was a 60-year-old man. His best-corrected visual acuity (BCVA) was counting fingers in the right eye. Senile cataract was found with grade II nuclear sclerosis. Optical coherence tomography revealed foveoschisis with a central foveal thickness (CFT) of 545 μm. The patient underwent uneventful phacoemulsification and in-the-bag implantation of intraocular lens. Postoperative persistent cystoid macular edema was found, with CFT increased to 787 μm. The macular edema did not respond to topical corticosteroids and nonsteroidal anti-inflammatory drugs. Triamcinolone acetonide 20 mg was injected into the posterior subtenon space 10 weeks after the surgery. Macular cystic lesions dramatically disappeared 2 months after the injection, and CFT decreased to 171 μm, with accompanying inner/outer segment disruption. His BCVA also improved to 20/100. Macular edema or foveoschisis did not recur, and BCVA remained stable 1 year after the cataract operation.
  
  
  CONCLUSIONS
  Foveoschisis and pseudophakic cystoid macular edema disappeared after posterior subtenon injection of triamcinolone acetonide without recurrence during the 15-month follow-up period.
authors: *MD Department of Ophthalmology, Far Eastern Memorial Hospital, Taipei, Taiwan (J-KW); Oriental Institute of Technology, Taipei, Taiwan (J-KW); and Department of Medicine, National Yang Ming University, Taipei, Taiwan (J-KW, W-CL).
authors: Jia-Kang
authors: JK
authors: Wang
authors: Wen-Chen
authors: WC
authors: Lin
mesh_terms: D005584:Fovea Centralis; D005938:Glucocorticoids / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D056965:Injections, Intraocular; D019654:Lens Implantation, Intraocular; D008269:Macular Edema / Q000175:diagnosis / Q000188:drug therapy*; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification; D041441:Retinoschisis / Q000175:diagnosis / Q000188:drug therapy*; D058475:Tenon Capsule / Q000187:drug effects*; D041623:Tomography, Optical Coherence; D014222:Triamcinolone Acetonide / Q000008:administration & dosage / Q000627:therapeutic use*; D014792:Visual Acuity
chemical_list: D005938:Glucocorticoids; D014222:Triamcinolone Acetonide