Keep up with eye checks.
Some eye conditions have no early symptoms. Follow the checkup schedule your eye care professional recommends.
SEEING IS PERSONAL
One world.
Many ways
to see it.
A gentle, interactive look at colour vision, focus and sight loss. Try a short colour exercise, compare a live scene, and learn everyday eye care habits.
Educational only · No diagnosis · Camera stays on your device
THE VIEW IS NEVER
ONE SIZE FITS ALL ↗
ONE SIZE FITS ALL ↗
01 / COLOUR CHECK
How do colours
read to you?
Find the tile that looks different. Eight quick rounds explore red–green and blue–yellow colour discrimination on this screen.
INTERACTIVE EXERCISE≈ 2 MINUTES
A little test of perception.
Set your screen to a comfortable brightness. Turn off colour filters or Night Shift if you can. Choose the tile that looks different, or “I’m not sure.”
Eye doctors can use clinical tests to assess colour vision differences. SNEC eye screening service ↗
02 / LIVE COMPARISON
Same scene.
Another lens.
Place two views side by side. Use your rear camera or explore the sample scene. Everything is processed locally on your device.
SAMPLE SCENE
STANDARD VIEW
SIMULATED VIEW
These simulations approximate colour differences; they cannot show exactly what another person sees. Camera access works on HTTPS or localhost. No frames are saved or sent anywhere.
03 / FOCUS GALLERY
Focus can change
the whole picture.
Choose a common refractive condition, then switch between near and far details in an illustrated scene. These are teaching examples, not a way to test your eyes.
ILLUSTRATIVE VIEW
Myopia
Distant things can appear blurry, while nearby details may remain clear.
Real experiences vary and conditions can occur together. An eye exam is the way to understand your own vision. Learn about blurred vision ↗
04 / SIGHT LOSS GALLERY
Sight loss has
many patterns.
Explore three examples of how eye conditions may affect a scene. The original stays alongside the illustration so you can compare them.
ORIGINAL SCENE
ILLUSTRATIVE EFFECT
ONE POSSIBLE PATTERN
Glaucoma
These effects are teaching illustrations, not a literal view through someone else’s eyes. Severity, affected areas and remaining vision vary. “Blindness” does not always mean complete absence of light or sight; these examples focus on partial sight loss.
05 / EYE CARE
Small habits.
Clearer care.
Everyday habits can support eye health. They do not replace an eye exam or treatment for an existing condition.
Rest during near work.
Every 20 minutes, look about 20 feet away for 20 seconds. Use comfortable lighting and blink often.
Make time outside.
Outdoor play can help lower the risk of myopia starting or progressing in children. Protect eyes from excess UV light.
Use the right protection.
Choose UV protection outdoors and suitable protective eyewear for sports or activities with an eye injury risk.
Do not wait for symptoms.
If you have diabetes, ask about regular retinal checks. Diabetic eye disease may develop before you notice a change.
Notice new changes.
Seek prompt medical care for sudden vision loss, new flashes or a sudden increase in floaters, especially with a shadow in your vision.
Read more from SNEC: eye care tips ↗ eye screening ↗ diabetic eye disease ↗ floaters and flashes ↗
A NOTE TO TAKE WITH YOU
Curiosity is a
good place to start.
These tools can spark questions, but only an eye care professional can assess your vision. If you notice a change or have concerns, book an eye exam.
SNEC eye screening