Amblyopia is a decrease or loss of vision caused by:
a. The brain turning off confusing visual images
b. Structural eye damage
c. Clouding of the retina
d. Ocular occlusion
A
Amblyopia is cause by the brain "turning off" confusing visual images. This is caused by the image not falling on the retina. It is not caused by clouding of the retina. Structural eye damage is not the cause. Ocular occlusion is a treatment for amblyopia, not a cause.
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