Vision Assessment

Visual Acuity Test (Snellen Chart)

Stand 6 feet (1.8 meters) away and select the smallest line you can read clearly

Click on the smallest line you can read clearly

20/200 (largest)
E
20/100
F P
20/70
T O Z
20/50
L P E D
20/40
F C Z P
20/30
E D F C Z P
20/25
F E L O P Z D
20/20 Normal Vision
D E F P O T E C
20/15 Above Average
L E F O D P C T

Instructions:

  • Stand approximately 6 feet (1.8 meters) from your screen
  • Cover one eye and read the chart with the other
  • Click on the smallest line where you can read at least 50% of the letters correctly
  • 20/20 means you can see at 20 feet what a person with normal vision sees at 20 feet