Eye charts are standardized visual tools used by eye care professionals to measure visual acuity how well a person can see at various distances. Commonly displayed in clinics, hospitals, and schools, they are essential for routine eye exams and screening.

Key Types Available:

• Snellen Chart:

  • Most widely used chart, features letters in decreasing sizes

  • Measures distance vision (typically from 6 meters or 20 feet)

• Tumbling E Chart:

  • Uses the letter “E” in various orientations

  • Ideal for non-literate patients or children

• Jaeger Chart:

  • For near vision testing, features printed paragraphs of varying font sizes

• LEA Symbols / Allen Charts:

  • Uses symbols like circles, apples, or houses—suitable for pediatric exams

• Ishihara Plates (for color blindness):

  • Dot-pattern tests for detecting red-green color vision deficiency