
Eye Prescription Chart
An eye prescription chart, often called a Snellen chart, displays letters of various sizes used during eye exams to determine vision clarity. The prescription includes numbers and symbols indicating the strength of lenses needed to correct vision, such as nearsightedness or farsightedness. These measurements specify how well you see at different distances, helping optometrists recommend glasses or contact lenses. Essentially, the chart helps assess your visual sharpness and guides the appropriate corrective measures for clear, comfortable vision.