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- Grönlund, Marita Andersson, 1959, et al.
(author)
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Visual function and ocular features in children and adolescents with attention deficit hyperactivity disorder, with and without treatment with stimulants.
- 2007
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In: Eye (London, England). - : Springer Science and Business Media LLC. - 0950-222X .- 1476-5454. ; 21:4, s. 494-502
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Journal article (peer-reviewed)abstract
- AIMS: To investigate visual function and ocular features in children with attention deficit hyperactivity disorder (AD/HD) and establish whether treatment with stimulants is reflected in functioning of the visual system. METHODS: Detailed ophthalmologic evaluations without and with stimulants were performed in 42 children (37 boys) with AD/HD, mean age 12 years, and compared with a reference group (ref; n=50; mean age 11.9 years; 44 boys). For a comparison between two groups, Mann-Whitney's U-test was used for ordered and continuous variables; for dichotomous variables, Fisher's exact test was used. For paired comparison (with and without treatment), sign test was used. RESULTS: In all, 83% had visual acuity of >0.8 (<0.1 logMAR) without treatment, 90% with stimulants (ref 98%; P=0.032 and n.s., respectively). Heterophoria was found in 29% without, and in 27% with, stimulants (ref 10%; P=0.038 and n.s., respectively) and subnormal stereovision (>60 s of arc) in 26% (ref 6%; P=0.016) without stimulants, and in 27%, with (P=0.014). Abnormal convergence (>6 cm or absent) was noted in 24% (ref 6%; P=0.031) without treatment and in 17%, with (n.s.). Astigmatism (> or =1.0 D) was observed in 24% (ref 6%; P=0.03), and signs of visuoperceptual problems in 21% (ref 2%; P=0.007). We found smaller optic discs (n=8/38) and neuroretinal rim areas (n=7/38) (P<0.0001) and decreased tortuosity of retinal arteries (n=6/34) (P=0.0002) than that of controls. CONCLUSIONS: Children with AD/HD had a high frequency of ophthalmologic findings, which were not significantly improved with stimulants. They presented subtle morphological changes of the optic nerve and retinal vasculature, indicating an early disturbance of the development of these structures.
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- Holmberg, Kirsten, et al.
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Health complaints in children with attention-deficit/hyperactivity disorder
- 2006
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In: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 95:6, s. 664-70
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Journal article (peer-reviewed)abstract
- Aim: To assess recurrent subjective health complaints in Swedish schoolchildren with attention-deficit/hyperactivity disorder (ADHD). Methods: Cohort study of 577 fourth-graders (10-y-olds) in one municipality in Stockholm County. All children were screened for attention and behaviour problems through interviews with their parents and teachers. Children with high scores underwent further clinical and cognitive assessments. Information about health complaints was collected from the children themselves in a classroom questionnaire. The 516 children for whom there was information from all three data sources were included in the final study population. Hypotheses were tested in multivariate analyses with adjustment for sex and parental education. Results: Recurrent abdominal pain (RAP), sleeping problems and tiredness were associated with ADHD (stratified relative risks: 2.2 [1.4-3.4], 1.7 [1.1-2.7] and 2.7 [1.7-4.1], respectively), while there was no association with headache. Conclusion: This study indicates that treatment strategies for children with ADHD need to include an effective evaluation and treatment of RAP, tiredness and sleeping disturbances. Evaluation of ADHD should be considered in children with recurrent health complaints.
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- Martin, Lene, et al.
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Visual fields in children with attention-deficit / hyperactivity disorder before and after treatment with stimulants.
- 2008
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In: Acta ophthalmologica. - : Wiley. - 1755-3768 .- 1755-375X. ; 86:3, s. 259-64
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Journal article (peer-reviewed)abstract
- PURPOSE: This study aimed to evaluate visual function in children with attention-deficit/hyperactivity disorder (ADHD), to correlate these data with the morphology of the optic nerve, and to find out if and how psychostimulant medication affects visual functions. METHODS: The visual acuity (VA) and visual fields (VFs) of 18 children with ADHD (two girls and 16 boys), aged 6-17 years, were examined before and after treatment with psychostimulants. A control group, consisting of 24 children (nine girls and 15 boys), aged 7-18 years, were examined twice to evaluate the repeatability of the tests and the learning effect. Fundus photographs were analysed by digital planimetry. RESULTS: Visual acuity increased significantly (p = 0.0039) in the ADHD group after treatment. The difference between the two VF examinations was significantly larger in the ADHD group compared with the control group (p = 0.036). Significantly more ADHD subjects had subnormal VF results without stimulants, compared with controls (p = 0.0043), but with stimulants the difference was no longer significant. CONCLUSIONS: Children with ADHD showed better VA and VF results with than without psychostimulant medication.
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