explain visual acuity
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Visual acuity (VA) commonly refers to the clarity of vision. Visual acuity is dependent on optical and neural factors, i.e., (i) the sharpness of the retinal focus within the eye, (ii) the health and functioning of the retina, and (iii) the sensitivity of the interpretative faculty of the brain.
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It commonly refers to the clarity of vision .It is depended on optical and neural factors that is the sharpness of the retinal focus within the eye ,the health and functioning of the retina and the sensitivity of the interpretative faculty of the brain.
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