<unk>  occurs in between 2 and 5% of the population in Western countries. In the UK, 90% of visual health appointments in the child concern<unk> . Depending on the chosen criterion for diagnosis, between 1 and 4% of the children have<unk> .
Amblyopia
Optic nerve
Ectopia 
Brainstem
Myopia
Eye disease
Nyctalopia
Far-sightedness