Visual Screening of Swedish Children: An Ophthalmological Evaluation

  • The purpose of this study was to describe the various ophthalmological conditions detected in the Swedish visual screening program for children.

  • This was longitudinal and retrospective study of all children (3126) born in 1982 in 3 Swedish municipalities have been followed from birth to ten years of age.

  • The prevalence of ametropia in the population was 7.7%, the prevalence of strabismus 3.1%, and the prevalence of organic lesions 0.6%.

  • Seven children (0.2%) were visually handicapped (visual acuity ≤0.3 in the better eye).

  • Refractive errors and microtropias were detected at the age of 4 years, when the first visual acuity test was performed.

  • Manifest strabismus was in many cases detected before the age of 4 years among studied children.

  • Following the screening and subsequent diagnosis and treatment, the prevalence of deep amblyopia (visual acuity ≤0.3) has been reduced from 2% to 0.2%.

  • Following treatment, 47% of the amblyopic children achieved a visual acuity better than 0.7.

  • Visual screening plays a significant role in detecting visual and ocular disorders.

  • With early screening, the prevalence of amblyopia is greatly reduced in Swedish children.

Publication date

December 6, 2016


NCBI via


Kvarnström, G., Jakobsson, P. and Lennerstrand, G.
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