title: Part-time occlusion therapy for anisometropic amblyopia detected in children eight years of age and older.
abstract: OBJECTIVE
  To determine the outcome of part-time occlusion therapy in children with anisometropic amblyopia detected after they were 8 years of age.
  
  
  METHODS
  We analyzed 29 eyes with anisometropic amblyopia in children 8 years of age and older. The mean age was 8.79 +/- 0.98 (range 8-12) years old. The subjects whose best-corrected visual acuity (BCVA) did not improve by two lines or better within 2 weeks of wearing glasses full-time were prescribed occlusion therapy for 6 hours a day outside of school hours, along with the instruction to wear glasses full-time. Subjects who complied with occlusion for more than 3 hours a day were considered to comply well.
  
  
  RESULTS
  The major component of the anisometropia was hyperopia in 51.7% of the subjects, and hyperopia plus astigmatism was found in 24.1%. The mean pretreatment BCVA score was 0.51 0.23 (LogMAR). Compliance was 89.66%. The mean posttreatment BCVA was 0.03 +/- 0.01 (LogMAR), and the success rate, based on a posttreatment BCVA of 0.1 (LogMAR) and better, was 96.43%. It took an average of 4.79 +/- 3.35 months to reach the desired posttreatment BCVA. The mean posttreatment stereopsis was 79.78 +/- 37.61 seconds of arc. The recurrence rate was 8%. The visual improvement was related to the degree of compliance (p = 0.000). The time taken to reach the posttreatment BCVA was shorter in subjects with a better pretreatment BCVA (p = 0.019), but it did not relate to the compliance (p = 0.366).
  
  
  CONCLUSIONS
  The most common component of anisometropia detected after 8 years of age was hyperopia. The part-time occlusion therapy, which had been carried out after school hours, was successful in most cases.
authors.affiliation: Department of Ophthalmology, Hallym University College of Medicine, Chunchon Sacred Heart Hospital, Chunchon, Korea.
authors.forename: Young Rok
authors.initials: YR
authors.lastname: Lee
authors.forename: Ju Youn
authors.initials: JY
authors.lastname: Lee
mesh_terms: D000550:Amblyopia / Q000503:physiopathology / Q000628:therapy*; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D012683:Sensory Deprivation; D013997:Time Factors; D016896:Treatment Outcome; D014792:Visual Acuity