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- Andersson Grönlund, Marita, 1959-, et al.
(författare)
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Ophthalmological findings in a sample of Swedish children aged 4-15 years
- 2006
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Ingår i: Acta Ophthalmologica Scandinavica. - : Munksgaard Forlag. - 1395-3907 .- 1600-0420. ; 84:2, s. 169-76
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Tidskriftsartikel (refereegranskat)abstract
- AIMS: To characterize ophthalmological findings in a sample of Swedish children aged 4-15 years.METHODS: A prospective cross-sectional comprehensive ophthalmological investigation was performed on a sample of 143 children (67 girls, 76 boys) aged 4-15 years.RESULTS: Visual acuity (VA) in the better eye >or=1.0 (0.3 logMAR). Amblyopia was found in 0.7% of subjects. A total of 68% of the children had no refractive errors. Hyperopia (>or=2.0 dioptres [D] in spherical equivalent [SE]) was found in 9% and myopia (>or=0.5 D SE) in 6% of children. Astigmatism (>or=0.75 D) was recorded in 22% and anisometropia (>or=1.0 D SE) in 3%. A total of 8% were optically corrected. Strabismus was recorded in 3.5%. Signs of visuoperceptual problems were reported in 3% of the children.CONCLUSION: This sample of Swedish children may serve as a comparison group regarding ophthalmological findings in children aged 4-15 years.
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| 2. |
- Aring, Eva, 1959, et al.
(författare)
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Strabismus and binocular functions in a sample of Swedish children aged 4-15 years
- 2005
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Ingår i: Strabismus. - : Taylor & Francis. - 0927-3972 .- 1744-5132. ; 13:2, s. 55-61
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: To investigate strabismus, head posture, nystagmus, stereoacuity, ocular motility, near point of convergence (NPC) and accommodative convergence to accommodation ratio (AC/A) in a sample of Swedish children. METHODS: A prospective cross-sectional study was carried out on 143 children, 4-15 years of age. RESULTS: Heterotropia was found in five children (3.5%), four with esotropia and one with exotropia. One child with esotropia had a slight overaction of both inferior oblique muscles. Heterophoria was found in 37 children (26%) at near and/or distance fixation and it was four times more common at near than at distance. In 29 children, heterophoria was found at one distance only and orthophoria at the other. Orthophoria at both near and distance fixation was noted in 101 children (70.5%). The near point of convergence was < or =6 cm in 97% of the children and 97% had stereoacuity of 60" or better. In the whole group, the median AC/A ratio calculated with the heterophoria method was 5.6/1 prism diopters/diopters (PD/D) and with the gradient method, 1.3/1 PD/D. No anomalous head postures or nystagmus were observed and all children had normal versions. CONCLUSION: In this study, 143 well-defined children were investigated with a battery of accurately described tests, commonly used in clinical practice. These results are in agreement with those of other studies examining one or few variables in larger populations and the authors therefore conclude that their results may be used for comparisons with different patient groups.
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| 3. |
- Aring, Eva, 1959, et al.
(författare)
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Visual fixation development in children.
- 2007
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Ingår i: Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv für klinische und experimentelle Ophthalmologie. - : Springer Science and Business Media LLC. - 0721-832X .- 1435-702X. ; 245:11, s. 1659-65
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The ability to keep steady fixation on a target is one of several aspects of good visual function. However, there are few reports on visual fixation during childhood in healthy children. METHODS: An infrared eye-tracking device (Orbit) was used to analyse binocular fixation behaviour in 135 non-clinical participants aged 4-15 years. The children wore goggles and their heads were restrained using a chin and forehead rest, while binocularly fixating a stationary target for 20 s. RESULTS: The density of fixations around the centre of gravity increased with increasing age (p < 0.01), and the time of fixation without intruding movements increased with increasing age (p = 0.02), while intruding saccades decreased with increasing age (p < 0.01). The number of blinks and drifts did not differ between 4 and 15 years, and there were no significant differences with regard to gender or laterality in any of the investigated variables. No nystagmus was observed. CONCLUSION: This study establishes values for visual fixation behaviour in a non-clinical population aged 4-15 years, which can be used for identifying children with fixation abnormalities.
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| 7. |
- Grönlund, Marita Andersson, 1959, et al.
(författare)
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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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Ingår i: Eye (London, England). - : Springer Science and Business Media LLC. - 0950-222X .- 1476-5454. ; 21:4, s. 494-502
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Tidskriftsartikel (refereegranskat)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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| 9. |
- Holmberg, Kirsten, et al.
(författare)
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Health complaints in children with attention-deficit/hyperactivity disorder
- 2006
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Ingår i: Acta Paediatrica. - : Wiley. - 0803-5253 .- 1651-2227. ; 95:6, s. 664-70
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Tidskriftsartikel (refereegranskat)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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| 10. |
- Martin, Lene, et al.
(författare)
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Visual fields in children with attention-deficit / hyperactivity disorder before and after treatment with stimulants.
- 2008
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Ingår i: Acta ophthalmologica. - : Wiley. - 1755-3768 .- 1755-375X. ; 86:3, s. 259-64
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Tidskriftsartikel (refereegranskat)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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