Vision plays an important role in
most everyday activities. Consistent with this, people with visual impairment
are usually faced with significant challenges in their daily activities. In children, such activities include playing, reading, socialisation and taking care of their daily needs. In the paediatric ophthalmological field, visual
problems include high refractive errors, binocular disorders, depth perception
deficiency, amblyopia and ocular pathology. These visual impairments in
children potentially cause psychological and functional changes and could
affect educational and social prospects and may thus impact on vision-related
quality of life (VRQoL).
Amblyopia is usually defined as a
unilateral or bilateral reduction in visual function caused by abnormal visual
input resulting from degradation of the retinal image during a sensitive period
of visual development, which historically has been thought to be the first
seven years of life.
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