Visual Acuity
Visual acuity is a measure of how well you can see, specifically your ability to discern fine details at a given distance. It is commonly assessed using an eye chart, where letters or symbols of various sizes are displayed. A standard measure is represented as a fraction, such as 20/20 vision, indicating that you can see at 20 feet what a person with normal vision can see at that distance. Higher numbers indicate worse vision, while lower numbers signify better visual clarity. Strong visual acuity is essential for activities like reading, driving, and recognizing faces.
Additional Insights
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Visual acuity refers to the sharpness or clarity of vision. It measures how well we can see details at a specific distance, typically assessed using an eye chart. For example, a person with 20/20 vision can discern letters lined up on the chart from 20 feet away, which is considered normal vision. If someone has 20/40 vision, they need to be closer (20 feet) to see what a person with 20/20 vision can see from further away. Visual acuity can be affected by various factors, including age, eye health, and conditions like nearsightedness or farsightedness.