title: [Malyugin ring for intraoperative miosis in femtosecond laser phacovitrectomy].
abstract: OBJECTIVE
  To evaluate the usefulness of the Malyugin ring in poor pupil dilation during phacoemulsification assisted with femtosecond laser with 23 gauge pars plana vitrectomy.
  
  
  METHODS
  A 57-year-old female with cataract and vitreous hemorrhage, and poor pupil dilation (5.5mm). The phacoemulsification assisted with femtosecond laser, using Malyugin ring after capsulorrhexis, followed by pars plana vitrectomy, and removing at the end without complications.
  
  
  RESULTS
  A successfull intraoperative pupil dilation was achieved without complications, with a final BCVA of 20/40.
  
  
  CONCLUSIONS
  The Malyugin ring is an effective alternative in cases with poor pupil dilation in femtophacovitrectomy, preserving the anatomical and functional integrity.
authors.affiliation: Alta Especialidad en Retina y Vítreo, Subsección de Retina, Sección de Oftalmología, Hospital Central Militar, Ciudad de México, Distrito Federal, México. Electronic address: moya5339@yahoo.com.mx.
authors.forename: J O
authors.initials: JO
authors.lastname: Moya Romero
authors.affiliation: Subsección de Retina, Sección de Oftalmología, Hospital Central Militar, , Ciudad de México, Distrito Federal, México.
authors.forename: G A
authors.initials: GA
authors.lastname: Ochoa Máynez
authors.affiliation: Subsección de Córnea y Segmento Anterior, Sección de Oftalmología, Hospital Central Militar, , Ciudad de México, Distrito Federal, México.
authors.forename: M A
authors.initials: MA
authors.lastname: Cantero Vergara
authors.affiliation: Alta Especialidad en Retina y Vítreo, Subsección de Retina, Sección de Oftalmología, Hospital Central Militar, Ciudad de México, Distrito Federal, México.
authors.forename: C A
authors.initials: CA
authors.lastname: Gómez Cortes
mesh_terms: D002386:Cataract / Q000150:complications; D004106:Dilatation / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000209:etiology / Q000517:prevention & control*; D053685:Laser Therapy / Q000009:adverse effects* / Q000379:methods; D019654:Lens Implantation, Intraocular; D008875:Middle Aged; D015877:Miosis / Q000209:etiology / Q000517:prevention & control*; D018918:Phacoemulsification / Q000009:adverse effects* / Q000379:methods; D055682:Viscoelastic Substances; D014821:Vitrectomy / Q000379:methods*; D014823:Vitreous Hemorrhage / Q000150:complications / Q000601:surgery
chemical_list: D055682:Viscoelastic Substances
keywords: Anillo de Malyugin; Cirugía de catarata asistida con láser de femtosegundo; Femtosecond laser-assisted cataract surgery; Intraoperative miosis; Malyugin ring; Miosis intraoperatoria; Pars plana vitrectomy; Vitrectomía pars plana