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Impressum
Number of parent contacts necessary to obtain an ophthalmologic examination record following preschool vision screening in kindergarten at age three
1Barry J. C., 1Ohmer M., 2König H. H.
1Dept. Ophthalmology II, UKT, Schleichstr. 12-16, D - 72076 Tübingen; 2Dept. Health Economy, University of Ulm, Helmholtzstr. 22, D - 89081 Ulm
Objective: The effectiveness of amblyopia screening depends on
the subsequent willingness of parents to present their child for an ophthalmologic
examination. Following a field study on preschool vision screening in
kindergarten, the purpose of this study was to assess the number of parent
contacts and the time necessary to obtain an ophthalmologic examination
record.
Methods: 1.184 three-year-old children were examined twice by orthoptists
in kindergarten. 354 children were referred for an ophthalmologic examination.
If necessary, their parents were repeatedly contacted and asked to present
their children for an ophthalmologic examination. The number of parent
contacts and the time necessary were analysed retrospectively.
Results: In 49 (13.8%) children no ophthalmologic examination record
was obtained within one year. In the remaining 305 children the records
were obtained after on average 3 parent contacts (range: 0-9) and 111
days (range: 1-467). Among those 274 children of 305 children, who received
an ophthalmologic examination after parent contact, 2 (3;5) contacts
were necessary to obtain 36% (71%; 94%) of the records. Within 120 (240;
360) days, 56% (93%, 98%) of the records were available. All newly detected
cases of amblyopia were diagnosed after on average 3 (range: 1-7) parent
contacts. The ratio of contact frequency to number of available ophthalmologic
records was similar for subgroups with low and high risk for amblyopia.
Conclusions: In order to obtain a high effectiveness of orthoptic
screening, parents had to be contacted up to seven times before ophthalmologic
examination records could be obtained. This resource consumption must
be considered when analysing the cost-effectiveness of screening programs.
These results warrant assessment of parent compliance with recommendations
for ophthalmologic examination in the evaluation of any program for amblyopia
screening.
Acknowledgements: UKT fortuene grant # 447