According to WebMD, a person with 20/50 vision is regarded to have visual impairment. Individuals with 20/50 visual acuity can see an object at a distance of 20 feet that those with normal vision can see at a distance of 50 feet.
According to All About Vision, those with 20/20 visual acuity are considered to have normal vision. A person must have visual acuity of 20/40 or greater in order to receive a driver’s licence in the United States. This may involve wearing glasses or contact lenses. The legal definition of blindness is a visual acuity of 20/200 or worse with the aid of corrective lenses. A visual acuity of 20/10 or higher signifies exceptional eyesight, although few individuals possess it.
According to All About Vision, doctors utilise eye charts to measure visual acuity. The Snellen eye chart features eleven rows of capital letters. Towards the bottom of the chart, each letter row becomes progressively smaller. A person’s visual acuity is tested by identifying the smallest line of readable letters. The “tumbling E” eye chart is a distinct eye chart that is frequently used for young children and others who cannot read or recognise letters.