title: [Treatment of intraocular fibrinous membrane by anterior chamber injection of tissue plasminogen activator after IOL implantation].
abstract: OBJECTIVE
  To investigate the method of treatment of intraocular fibrinous membrane by tissue plasminogen activator (t-PA) after intraocular lens (IOL) implantation and evaluate its clinical results.
  
  
  METHODS
  58 eyes of 43 patients after cataract surgery were divided into three groups, and received t-PA anterior chamber (AC) injection or combined with YAG laser therapy at different times after the operation. Group 1 included 26 eyes which received 4 microg t-PA AC injection at the end of operation. In group 2, 22 eyes whose fibrinous membrane was formed 5 - 7 days after the operation were injected with 4 microg t-PA at that time. In group 3, 10 eyes with thicker membrane were given YAG laser treatment at postoperative 5 - 9 days and then 4 microg t-PA was injected into the AC.
  
  
  RESULTS
  In group 1, hyphema occurred in 4 eyes, in 8 eyes at the pupillary region the fibrinous membrane was formed which was completely lysed after t-PA AC injection at postoperative 3 - 5 days. In group 2, the membrane was lysed within 24 hours in 20 of 22 eyes and no hyphema was found. In group 3, the membrane was lysed within 4 - 24 hours after t-PA injection in all cases, and no hyphema occurred.
  
  
  CONCLUSIONS
  It is very effective to treat fibrinous membrane formation after IOL implantation by t-PA AC injection at postoperative 1 week when the AC inflammation is well controlled. The combined use of YAG laser with t-PA AC injection is much more effective for the treatment of such a membrane.
authors.affiliation: Institute of Ophthalmology & Eye Hospital, Shandong Academy of Medical Sciences, Qingdao 266071.
authors.forename: L
authors.initials: L
authors.lastname: Xie
authors.forename: S
authors.initials: S
authors.lastname: Li
authors.forename: X
authors.initials: X
authors.lastname: Dong
authors.forename: J
authors.initials: J
authors.lastname: Cao
authors.forename: W
authors.initials: W
authors.lastname: Shi
authors.forename: P
authors.initials: P
authors.lastname: Guo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000867:Anterior Chamber; D002648:Child; D002675:Child, Preschool; D005260:Female; D005337:Fibrin / Q000378:metabolism*; D006801:Humans; D007267:Injections; D019654:Lens Implantation, Intraocular / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000188:drug therapy*; D010959:Tissue Plasminogen Activator / Q000008:administration & dosage*
chemical_list: D005337:Fibrin; D010959:Tissue Plasminogen Activator