Eye Vision Test (Snellen) Guide to Self-Testing Visual Acuity Without Visiting a Doctor

Eye Vision Test (Snellen) Guide to Self-Testing Visual Acuity Without Visiting a Doctor

Eye Vision Test (Snellen) Welcome Regular eye check-ups ae to our Health & Wellness Blog! Maintaining good vision is crucial for overall well-being . re essential, and a common tool used to assess visual acuity is the Snellen eye chart. What is a Snellen Chart? The Snellen chart is an eye chart used by eye care professionals and others to measure visual acuity. It was developed by Dutch ophthalmologist Hermann Snellen in 1862. The standard chart shows eleven lines of block letters, also known as optotypes. The first line consists of a single large letter, often an 'E'. Subsequent rows have increasing numbers of letters that are progressively smaller. The results of a Snellen test are expressed as a fraction, like 20/20 vision (or 6/6 in meters), which indicates normal visual acuity. The top number represents the standard testing distance (20 feet or 6 meters), and the bottom number indicates the distance at which a person with normal vision could read the line. How to Perform a …