title: Cataracts in congenital toxoplasmosis.
abstract: OBJECTIVE
  To determine the incidence and natural history of cataracts in children with congenital toxoplasmosis.
  
  
  METHODS
  Children referred to the National Collaborative Chicago-based Congenital Toxoplasmosis Study (NCCCTS) between 1981 and 2005 were examined by ophthalmologists at predetermined times according to a specific protocol. The clinical course and treatment of patients who developed cataracts were reviewed.
  
  
  RESULTS
  In the first year of life, 134 of 173 children examined were treated with pyrimethamine, sulfadiazine, and leukovorin, while the remaining 39 were not treated. Cataracts occurred in 27 eyes of 20 patients (11.6%, 95% confidence interval [7.2%, 17.3%]). Fourteen cataracts were present at birth and 13 developed postnatally. Locations of the cataracts included anterior polar (three eyes), anterior subcapsular (six eyes), nuclear (five eyes), posterior subcapsular (seven eyes), and unknown (six eyes). Thirteen cataracts were partial, nine total, and five with unknown complexity. Twelve cataracts remained stable, 12 progressed, and progression was not known for 3. Five of 27 eyes had cataract surgery, with 2 of these developing glaucoma. Sixteen eyes of 11 patients had retinal detachment and cataract. All eyes with cataracts had additional ocular lesions.
  
  
  CONCLUSIONS
  In the NCCCTS cohort, 11.6% of patients were diagnosed with cataracts. There was considerable variability in the presentation, morphology, and progression of the cataracts. Associated intraocular pathology was an important cause of morbidity.
authors: Department of Ophthalmology and Visual Sciences, The University of Chicago, Chicago, IL 60637, USA.
authors: Veena
authors: V
authors: Arun
authors: A Gwendolyn
authors: AG
authors: Noble
authors: Paul
authors: P
authors: Latkany
authors: Robert N
authors: RN
authors: Troia
authors: Jessica
authors: J
authors: Jalbrzikowski
authors: Kristen
authors: K
authors: Kasza
authors: Ted
authors: T
authors: Karrison
authors: Simone
authors: S
authors: Cezar
authors: Mari
authors: M
authors: Sautter
authors: Mark J
authors: MJ
authors: Greenwald
authors: William
authors: W
authors: Mieler
authors: Marilyn B
authors: MB
authors: Mets
authors: Ambereen
authors: A
authors: Alam
authors: Kenneth
authors: K
authors: Boyer
authors: Charles N
authors: CN
authors: Swisher
authors: Nancy
authors: N
authors: Roizen
authors: Peter
authors: P
authors: Rabiah
authors: Monte A
authors: MA
authors: Del Monte
authors: Rima
authors: R
authors: McLeod
mesh_terms: D000293:Adolescent; D000328:Adult; D000981:Antiprotozoal Agents / Q000627:therapeutic use; D002386:Cataract / Q000150:complications* / Q000175:diagnosis; D002387:Cataract Extraction; D002648:Child; D002675:Child, Preschool; D004359:Drug Therapy, Combination; D006801:Humans; D015994:Incidence; D007223:Infant; D002955:Leucovorin; D011739:Pyrimethamine; D013411:Sulfadiazine; D014125:Toxoplasmosis, Congenital / Q000150:complications* / Q000175:diagnosis / Q000188:drug therapy
chemical_list: D000981:Antiprotozoal Agents; D013411:Sulfadiazine; D002955:Leucovorin; D011739:Pyrimethamine