title: A retrospective survey of childhood glaucoma prevalence according to Childhood Glaucoma Research Network classification.
abstract: OBJECTIVE
  To evaluate the Childhood Glaucoma Research Network (CGRN) classification system and describe the prevalence of each subtype according to this classification.
  
  
  METHODS
  Retrospectively, the medical records of 205 consecutive childhood glaucoma and glaucoma suspect patients at an urban tertiary care center were reviewed. The initial diagnosis and new diagnosis according to CGRN classification were recorded.
  
  
  RESULTS
  All patients fit one of the seven categories of the new classification. Seventy-one percent of diagnoses were changed upon reclassification. Twenty-three percent of patients had primary glaucoma (juvenile open-angle glaucoma and primary congenital glaucoma [PCG]); 36% had secondary glaucoma (glaucoma associated with nonacquired ocular anomalies; glaucoma associated with nonacquired systemic disease or syndrome; glaucoma associated with acquired condition; and glaucoma following cataract surgery); and 39% were glaucoma suspect. Of the patients diagnosed with glaucoma, PCG was the most common diagnosis, seen in 32% of patients.
  
  
  CONCLUSIONS
  The CGRN classification provides a useful method of classifying childhood glaucoma.
authors.affiliation: Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami, Miami, Florida; Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, MA, USA.
authors.forename: Ambika
authors.initials: A
authors.lastname: Hoguet
authors.forename: Alana
authors.initials: A
authors.lastname: Grajewski
authors.forename: Elizabeth
authors.initials: E
authors.lastname: Hodapp
authors.forename: Ta Chen Peter
authors.initials: TC
authors.lastname: Chang
mesh_terms: D035843:Biomedical Research / Q000458:organization & administration; D002387:Cataract Extraction; D002648:Child; D002675:Child, Preschool; D003663:Decision Trees; D005260:Female; D005901:Glaucoma / Q000145:classification* / Q000175:diagnosis / Q000453:epidemiology*; D005902:Glaucoma, Open-Angle / Q000145:classification / Q000175:diagnosis / Q000453:epidemiology; D006801:Humans; D006871:Hydrophthalmos / Q000145:classification / Q000175:diagnosis / Q000453:epidemiology; D007223:Infant; D007429:Intraocular Pressure; D008297:Male; D009798:Ocular Hypertension / Q000145:classification / Q000175:diagnosis / Q000453:epidemiology; D009885:Ophthalmology / Q000458:organization & administration; D015995:Prevalence; D012189:Retrospective Studies; D062606:Tertiary Care Centers; D014505:Urban Population / Q000706:statistics & numerical data