Free eye checks
Check your eyes at home, for free
Sixteen screening checks and calculators built on the same principles eye doctors use. No sign-up, and your results stay on your device. They flag changes worth looking into; they do not replace an eye exam.
Vision
Visual acuity check
Tumbling-E letter check for each eye, with screen calibration. Gives an approximate 20/20-style score.
Amsler grid
The grid eye doctors use to spot central-vision changes linked to macular problems.
Color vision screener
Dot plates drawn fresh each time to screen for red-green and blue-yellow color deficiency.
Astigmatism dial
A clock-dial chart that shows whether some line directions look darker than others.
Contrast check
Letters fade step by step to show how well you see low-contrast detail.
Near vision card
Read text at a normal reading distance to see if you may need reading glasses.
Comfort
20-20-20 break timer
Reminds you every 20 minutes to look 20 feet away for 20 seconds.
Focus and blink break
A guided two-minute routine to relax focusing muscles and re-wet your eyes.
Dry eye symptom score
Ten questions that rate how much dryness symptoms affect your day.
Screen eye-strain risk
Scores your screen setup and habits and lists the three fixes that matter most.
Prescriptions
Prescription decoder
Turns SPH, CYL, AXIS, ADD and PD on your glasses prescription into plain English.
Glasses-to-contacts converter
Shows how a strong glasses prescription changes at the eye (vertex distance).
Surgery and costs
LASIK candidacy quiz
Ten questions on the factors surgeons check first, and which procedures may fit.
LASIK vs glasses cost calculator
Compares long-term spending on glasses and contacts with laser vision correction.
Family
Child myopia risk check
For parents. Rates the habits and family factors linked to nearsightedness.
Eye exam schedule
How often you or your child should have an eye exam, with a calendar reminder.