// Free Tool

Online Snellen Eye Test

A quick visual acuity screening — sit 60 cm (24 inches) from your screen, cover one eye at a time, and identify each letter. This is a screening tool only, not a prescription.

Before you start

  • Sit exactly 60 cm (about 24 inches) from your screen
  • Keep your screen brightness at 100% and reduce glare
  • Wear your current glasses or contacts if you normally do
  • Test each eye separately — cover the other eye with your palm (don't press)