title: [Six year follow-up of suspects of primary angle-closure glaucoma].
abstract: OBJECTIVE
  To understand the natural history and the risk factors of primary angleclosure glaucoma and obtain experiences that might help screening for the disease.
  
  
  METHODS
  Four hundred and eighty-five suspects were screened from 6 548 population aged over 40 years. The suspects were then followed up within six years. The following examinations were performed: visual acuity, axial anterior chamber depth, peripheral anterior chamber depth, intraocular pressure and cup/disc ratio of optic nerve papilla. The suspects with high risk were further examined.
  
  
  RESULTS
  During the follow-up period, twenty patients (4.1%) in the suspects developed angle-closure glaucoma, 14 cases had natural attack (Acute onset developed in 6 cases and 8 cases were in chronic stage) and 6 cases were found at early stage. The anterior chamber depth shallowed progressively in 28% of suspects.
  
  
  CONCLUSIONS
  Anterior chamber depth is an important index for screening of primary angle-closure glaucoma, and the regular follow-up is of significance for the suspects.
authors.affiliation: Zhongshan Ophthalmic Center, Sun Yat-sen University of Medical Sciences, Guangzhou 510060.
authors.forename: T
authors.initials: T
authors.lastname: Ye
authors.forename: Q
authors.initials: Q
authors.lastname: Yu
authors.forename: S
authors.initials: S
authors.lastname: Peng
authors.forename: N
authors.initials: N
authors.lastname: Wang
authors.forename: X
authors.initials: X
authors.lastname: Chen
mesh_terms: D000867:Anterior Chamber / Q000033:anatomy & histology; D005260:Female; D005500:Follow-Up Studies; D015812:Glaucoma, Angle-Closure / Q000453:epidemiology / Q000209:etiology*; D006801:Humans; D015994:Incidence; D008297:Male; D012307:Risk Factors