title: [Study of vitreoretinal dystrophies in a Mexican population].
abstract: BACKGROUND
  We undertook this study to demonstrate the incidence of vitreoretinal dystrophies in a Mexican population.
  
  
  METHODS
  This was a retrospective, observational, descriptive, transverse study. We analyzed the files of patients treated at the Retina Department of a medical center for state employees (ISSSTE) from January 1991 to December 2006 to obtain the incidence of vitreoretinal dystrophies.
  
  
  RESULTS
  We studied 36,300 patient files. We found an incidence of 0.008% for familial exudative vitreoretinal dystrophy, 0.008% for X-linked juvenile retinoschisis, 0.005% for Wagner disease and 0.005% for Goldmann-Favre disease. We present here a representative case of each type of dystrophy.
  
  
  CONCLUSIONS
  Vitreoretinal dystrophies are uncommon diseases and are difficult to diagnose. Even though their incidence is low, the poor evolution to blindness requires identification of early signs in order to offer timely and opportune treatment.
authors.affiliation: Servicio de Oftalmología, Centro Médico Nacional 20 de Noviembre, Instituto de Servicios y Seguridad Social de los Trabajadores del Estado, Mexico, D.F., Mexico. luisporozco@prodigy.net.mx
authors.forename: Luis Porfirio
authors.initials: LP
authors.lastname: Orozco-Gómez
authors.forename: Carmen Guadalupe
authors.initials: CG
authors.lastname: Castellanos-Pérez Bolde
authors.forename: Silvia
authors.initials: S
authors.lastname: Moguel-Ancheita
authors.forename: Andrés
authors.initials: A
authors.lastname: Lambarri-Arroyo
mesh_terms: D000293:Adolescent; D000328:Adult; D001766:Blindness / Q000209:etiology / Q000517:prevention & control; D002648:Child; D003430:Cross-Sectional Studies; D003941:Diagnostic Techniques, Ophthalmological; D018450:Disease Progression; D042241:Early Diagnosis; D005260:Female; D040181:Genetic Diseases, X-Linked / Q000175:diagnosis / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D008800:Mexico / Q000453:epidemiology; D012162:Retinal Degeneration / Q000175:diagnosis / Q000453:epidemiology* / Q000601:surgery; D012163:Retinal Detachment / Q000209:etiology; D012171:Retinal Vessels / Q000473:pathology; D041441:Retinoschisis / Q000175:diagnosis / Q000453:epidemiology / Q000235:genetics; D012189:Retrospective Studies; D014822:Vitreous Body / Q000473:pathology