title: The amplitude of accommodation in 6-10-year-old children - not as good as expected!
abstract: The aim of this study was to measure the amplitude of accommodation for junior level school children and to compare it with age-expected values. A junior level school in Göteborg, Sweden, was randomly chosen and the amplitude of accommodation among 76 children aged 6-10 years was examined using Donders' push-up method. The results showed lower amplitude than expected in a large group of children. Results also showed lower amplitude than previously reported for this age group, especially under monocular conditions, which revealed an average dioptric difference from the expected value of -3.60 dioptres (D) right eye (mean 12.40 D, median 12.00 D, S.D. 3.7 D) and -3.50 D left eye (mean 12.50 D, median 12.70 D, S.D. 3.8 D) (p < 0.001 for both eyes). Consequently, we conclude that it cannot be assumed that the amplitude of accommodation is in the expected amplitude range for all children of these ages.
authors.affiliation: Institute of Clinical Neuroscience, Department of Ophthalmology, The Sahlgrenska Academy at Göteborg University, Göteborg, Sweden. sterner@oft.gu.se
authors.forename: Bertil
authors.initials: B
authors.lastname: Sterner
authors.forename: Martin
authors.initials: M
authors.lastname: Gellerstedt
authors.forename: Anders
authors.initials: A
authors.lastname: Sjöström
mesh_terms: D000065:Accommodation, Ocular / Q000502:physiology*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D012029:Refraction, Ocular / Q000502:physiology; D012030:Refractive Errors / Q000503:physiopathology; D015348:Vision, Binocular / Q000502:physiology; D015349:Vision, Monocular / Q000502:physiology; D014792:Visual Acuity / Q000502:physiology