title: Krypton laser membranotomy for premacular hemorrhage.
abstract: BACKGROUND
  To evaluate the safety and effectiveness of krypton laser membranotomy.
  
  
  METHODS
  Eleven patients (12 eyes) with premacular hemorrhage were enrolled from April 1998 to November 2002. The causes of premacular hemorrhage were proliferative diabetic retinopathy (7 patients, 8 eyes), Valsalva retinopathy (3 patients) and leukemia (1 eye). Krypton laser was used to create a membranotomy on the sloping edge of the premacular hemorrhage. Five eyes with proliferative diabetic retinopathy were treated with inferior panretinal photocoagulation and laser membranotomy simultaneously. After intravitreal dispersion of premacular blood, fundus examinations were performed in all eyes and fluorescein angiography in 5 patients to evaluate the retinal damage.
  
  
  RESULTS
  Vision was improved within 2 weeks after surgery in all eyes with premacular hemorrhage, which received krypton laser membranotomy. No retinal damage was seen at the site of membranotomy. No eye needed vitrectomy postoperatively during the follow-up (mean, 17 months).
  
  
  CONCLUSIONS
  Krypton laser membranotomy appears to be a safe and simple alternative procedure for treating selected cases of premacular hemorrhage. Further trials are necessary to evaluate its benefit.
authors.affiliation: Department of Ophthalmology, Chang Gung Memorial Hospital, Kaohsiung, Taiwan. d2767@adm.cgmh.org.tw
authors.forename: Yung-Jen
authors.initials: YJ
authors.lastname: Chen
authors.forename: Hsi-Kung
authors.initials: HK
authors.lastname: Kou
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001485:Basement Membrane / Q000601:surgery; D003930:Diabetic Retinopathy / Q000150:complications; D019773:Epiretinal Membrane / Q000209:etiology / Q000601:surgery*; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D017075:Laser Coagulation / Q000379:methods*; D007938:Leukemia / Q000150:complications; D008297:Male; D008875:Middle Aged; D012166:Retinal Hemorrhage / Q000209:etiology / Q000601:surgery*; D019572:Retinal Neoplasms / Q000150:complications; D014792:Visual Acuity / Q000502:physiology