Visual acuity -LRB- ORGANIZATION@1 -RRB- is acuteness or clearness of vision , especially form vision , which is dependent on the sharpness of the retinal focus within the eye and the sensitivity of the interpretative faculty of the brain .

Visual acuity -LRB- ORGANIZATION@1 -RRB- is acuteness or clearness of vision , especially form vision , which depends on the sharpness of the retinal focus within the eye , the sensitivity of the nervous elements , and the interpretative faculty of the brain .
