See how youreyes are doingin 5 minutes.

No buttons needed — just fit your face inside the oval and follow the coach. When you're positioned well, a countdown starts and the scan runs by itself. Bright, even lighting gives the best results.

Sit about 1 metre from the screen. Each eye is tested separately — cover the other with your palm. Tap the arrow matching the direction the E points (keyboard arrows work too). For an accurate Eye Power estimate, test without glasses. Tip: calibrate your screen first for best precision.

A number hides in each dot circle. Tap what you see — or "Nothing" if no number appears. Use normal screen brightness and switch off night-mode color filters.

Cover one eye and stare at the centre. With astigmatism, some lines often look darker or sharper than others. Keep glasses/contacts on if you normally wear them.

Hold any standard bank / ID card against the screen and drag the slider until the blue card is exactly the same width. This tells the app your screen's true size, making every test medically sized.

Hold your usual reading distance (~40 cm), wear your normal glasses if you use them for distance (not readers). Both eyes open. Read each paragraph — tap the smallest one you can read comfortably.

A letter appears fainter and fainter. Tap the letter you see — or "Can't see". Normal screen brightness, no night-mode filters. Both eyes open.

Your test results, translated into an estimated prescription — sphere (SPH), cylinder signal (CYL) with axis, and reading addition (ADD). For real numbers only a professional refraction will do; this gives you a strong starting indication. Acuity must be done without glasses.

Every saved screening lives here — on your device only. Save from the Report page after testing.

Hold reading distance (~35 cm). Cover one eye, stare only at the centre dot, and use your side vision. Tap or drag over any squares that look wavy, blurry, faded or missing. Then tick what you noticed and continue. Marks are saved so you can watch for change over time.

A very sensitive central-vision check. Cover one eye, hold ~40 cm away, and look at the blue dot. The vertical line is split in the middle — tell me whether the top half sits to the left or right of the bottom half, or if it looks wavy / can't tell. It gets subtler each turn. Wear your usual glasses.

Sit about an arm's length away. Cover one eye and keep your open eye fixed on the centre ✛ the whole time — don't chase the dots. Each time a faint dot blinks near the edge, tap I see it (or press Space). Some rounds show nothing — that's normal.

Think about the past week. For each item, choose how often it happened. This is an OSDI-style questionnaire — a validated way to gauge dry-eye symptom load. It pairs with the blink-rate and redness signals from the AI scan.

The 20-20-20 rule: every 20 minutes, look about 20 ft (6 m) away for 20 seconds. Keep this running while you work — I'll chime for each break and track your streak. (Browser tabs may slow timers in the background; keep this tab visible for best accuracy.)

Evidence-based home care for dry, gritty, screen-tired eyes — a warm compress to free the oil that stabilises your tears, gentle lid care, and helpful habits. If symptoms are severe, painful, or include vision loss, see an eye-care professional.

Time outdoors in daylight is the best-proven way to lower the risk of short-sightedness (myopia), especially in children — bright outdoor light slows the eye's over-growth. Aim for about 2 hours a day / 10–14 hours a week.