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|
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4
|
____________ arises due to gradual weakening of ciliary muscles
|
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5
|
the area in the eye where there is no vision
|
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6
|
a __________ is a natural spectrum appearing in the sky after a rain shower
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8
|
the twinkling of stars is due to atmospheric __________ of starlight
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9
|
the band of coloured components of a light beam
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|
|
|
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|
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1
|
most of the refraction of light rays entering the eyes occurs at
|
|
2
|
the sensory cells that detect colour
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|
3
|
the nerve that takes impulses to the brain from the eye
|
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7
|
__________ is also known as near - sightedness
|
|
10
|
the light sensitive membrane in the eye
|
|
|
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