title: [Ultrasound biomicroscopy in pigmentary glaucoma].
abstract: OBJECTIVE
  To study the anterior chamber in pigmentary glaucoma by anterior ultrasound biomicroscopy (UBM), and to determine the effect of the YAG-laser iridotomy on intraocular pressure (IOP) and the iris morphology in pigmentary glaucoma.
  
  
  METHODS
  Seven patients (14 eyes) with a diagnosis of pigmentary glaucoma were studied. YAG-laser iridotomy was performed on all the patients with demonstrable iris concavity by UBM, performing UBM one week post-iridotomy and control of the IOP at one week, six months and at one year following treatment.
  
  
  RESULTS
  The existence of iris concavity was demonstrated in 6 of the 7 patients (12 of the 14 eyes), performing a YAG-laser iridotomy in all of them. Remission of the iris concavity was observed in 5 of the 6 patients (10 of the 12 eyes) and good control of the IOP was achieved without additional topical treatment in 3 (6 eyes). At one year, the number of drugs needed for IOP control decreases (p<0,005, Wilcoxon test, correction for small samples).
  
  
  CONCLUSIONS
  In our sample, the YAG-laser iridotomy rectifies the iris concavity present in pigmentary glaucoma, reducing the IOP and the number of drugs needed for its control.
authors.affiliation: Hospital Clínico San Carlos, Universidad Complutense de Madrid, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Méndez-Hernández
authors.forename: J
authors.initials: J
authors.lastname: García-Feijoó
authors.forename: R
authors.initials: R
authors.lastname: Cuiña-Sardiña
authors.forename: J
authors.initials: J
authors.lastname: García-Sánchez
mesh_terms: D000328:Adult; D000867:Anterior Chamber / Q000648:ultrastructure*; D005260:Female; D005902:Glaucoma, Open-Angle / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000473:pathology / Q000601:surgery; D006801:Humans; D007429:Intraocular Pressure / Q000187:drug effects; D007498:Iris / Q000000981:diagnostic imaging* / Q000473:pathology / Q000601:surgery; D053685:Laser Therapy; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography / Q000295:instrumentation / Q000379:methods