title: [Case finding of amblyopia in young children using the TNO-depth-vision-test].
abstract: To evaluate the policy in amblyopia detection by pre-school health care workers we studied the prevalence of amblyopia that had not previously been detected among 1975 children at the ages of 4 years 6 months to 5 years 10 months. Seventy-eight (3.9%) of the children had insufficient stereo-acuity, though no form of ocular abnormality had been noted in the past. Twenty-one (1%) of the children had a previously undetected amblyopia. After 1 1/2 years 74% of the children with amblyopia had a visual acuity of 0.9 or more, while most of the children--at the time of referral--were 4 1/2 years or older. Amblyopia can be identified earlier by (a) a proper transfer of information from pre-school health care workers to the school doctor; (b) taking into consideration low vision if assessment of vision was not successful in the first examination, and (c) performing at least the TNO-stereotest when in doubt.
authors.affiliation: Gewestelijke Gezondheidsdienst West-Friesland, Hoorn.
authors.forename: R A
authors.initials: RA
authors.lastname: Hirasing
authors.forename: A
authors.initials: A
authors.lastname: Wilbrink
mesh_terms: D000550:Amblyopia / Q000175:diagnosis* / Q000453:epidemiology; D002675:Child, Preschool; D003867:Depth Perception; D006801:Humans; D007223:Infant; D008403:Mass Screening; D009426:Netherlands / Q000453:epidemiology; D014787:Vision Tests
vernacular_title: Opsporing van amblyopie bij kleuters met de TNO-dieptezientest.