title: A single intraoperative sub-Tenon's capsule triamcinolone acetonide injection for the treatment of post-cataract surgery inflammation.
abstract: OBJECTIVE
  To compare a single intraoperative sub-Tenon's capsule triamcinolone acetonide injection with steroid drops in the treatment of ocular inflammation after cataract surgery.
  
  
  METHODS
  Randomized, double-masked controlled trial.
  
  
  METHODS
  A total of 100 patients were randomized prospectively into 2 groups: 50 patients treated with 1% prednisolone eyedrops (control group A) and 50 patients treated with sub-Tenon's capsule triamcinolone (treatment group B).
  
  
  METHODS
  All patients underwent phacoemulsification and intraocular posterior lens implantation. After surgery, patients were randomized to receive either (group B) an intraoperative 40 mg triamcinolone acetonide sub-Tenon's capsule injection or (group A) 1% prednisolone acetate eyedrops, according to the following schedule: 1 drop 4 times daily (week 1), 3 times daily (week 2), 2 times daily (week 3), once daily (week 4). To mask the study, group B received vehicle drops administered on a similar schedule, and group A received an intraoperative sub-Tenon's capsule injection of a 1 ml balanced salt solution.
  
  
  METHODS
  The main outcome measures included inflammation (cell, flare, ciliary flush), intraocular pressure, and lack of response.
  
  
  RESULTS
  Triamcinolone was shown to have anti-inflammatory efficacy clinically equivalent to conventional 1% prednisolone eyedrops in reducing intraocular inflammation, as measured by clinical methods. Triamcinolone was found to be as safe as the prednisolone in terms of adverse effects, changes in visual acuity, intraocular pressure, and biomicroscopic and ophthalmoscopic variables. On the third, seventh, fourteenth, and twenty-eighth postoperative days, a significantly lower intraocular pressure (P<0.01) was noted in the triamcinolone group than in the prednisolone group.
  
  
  CONCLUSIONS
  A single intraoperative 40-mg triamcinolone acetonide sub-Tenon's capsule injection demonstrated a clinically equivalent therapeutic response and ocular tolerance compared with 1% prednisolone drops in controlling postoperative inflammation after uncomplicated cataract surgery and merits further investigation.
authors.affiliation: Hospital de Olhos de Araraquara, Araraquara, Brazil.
authors.forename: Fernando
authors.initials: F
authors.lastname: Paganelli
authors.forename: José A
authors.initials: JA
authors.lastname: Cardillo
authors.forename: Luiz A S
authors.initials: LA
authors.lastname: Melo
authors.forename: Anselmo G
authors.initials: AG
authors.lastname: Oliveira
authors.forename: Mirian
authors.initials: M
authors.lastname: Skaf
authors.forename: Rogério A
authors.initials: RA
authors.lastname: Costa
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003238:Connective Tissue / Q000187:drug effects*; D004311:Double-Blind Method; D005260:Female; D005938:Glucocorticoids / Q000008:administration & dosage / Q000627:therapeutic use*; D006801:Humans; D007267:Injections; D007429:Intraocular Pressure / Q000187:drug effects; D007430:Intraoperative Care; D019654:Lens Implantation, Intraocular; D008297:Male; D008875:Middle Aged; D009883:Ophthalmic Solutions / Q000008:administration & dosage; D018918:Phacoemulsification / Q000009:adverse effects*; D011183:Postoperative Complications; D011239:Prednisolone / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000627:therapeutic use; D011446:Prospective Studies; D013810:Therapeutic Equivalency; D014222:Triamcinolone Acetonide / Q000008:administration & dosage / Q000627:therapeutic use*; D014606:Uveitis, Anterior / Q000188:drug therapy* / Q000209:etiology; D014792:Visual Acuity
chemical_list: D005938:Glucocorticoids; D009883:Ophthalmic Solutions; C009935:prednisolone acetate; D011239:Prednisolone; D014222:Triamcinolone Acetonide