Snellen Eye Chart

• The Snellen Eye Chart is a standard tool used to measure visual acuity.
• It is a chart with letters or symbols of different sizes arranged in rows.
• The chart is typically placed on a wall at a distance of 20 feet (or 6 meters) from the patient.
• The patient is asked to read the smallest line of letters they can see clearly from the designated distance.
• The results are recorded using a notation system that indicates the distance at which the test was performed and the line of letters read correctly.
• The Snellen Eye Chart is commonly used in optometry and ophthalmology to assess visual acuity in patients.
• It is a useful tool for detecting vision problems such as nearsightedness, farsightedness, and astigmatism.
• The chart is available in different sizes and formats to accommodate various testing environments and patient populations.
• The Snellen Eye Chart can be used to monitor changes in visual acuity over time and to detect early signs of vision loss or eye disease.