Understand the concept of visual acuity and its significance in achieving clear vision. Explore factors that influence visual acuity and ways to maintain optimal eyesight The visual acuity test is a quick, non-invasive procedure designed to measure the sharpness or clarity of your vision, performed by eye care professionals such as optometrists or ophthalmologists. A Visual Acuity Test is a simple yet essential assessment used to measure the sharpness or clarity of a person’s vision. It helps eye care professionals understand how well you can see objects at various distances. Visual acuity is the most common clinical measurement of how your eyes function. It's usually one of the first tests taken during a comprehensive eye exam to determine how sharp your vision is.