Visual fields in children with attention-deficit / hyperactivity disorder before and after treatment with stimulants
Lene Martin1, Eva Aring, Magnus Landgren
1Department of Clinical Neuroscience, Ophthalmology and Vision, Karolinska Institute, Stockholm, Sweden. Lene.Martin@ki.se
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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