Vision Simulator

Explore how different visual acuity levels may look in daily life. Use the quick preview below, then open a level page for full context (reference only).

Educational use only — not medical advice and not a diagnosis.

Quick preview (starts at 20/20)

Vision Simulator
Preview: 20/20
Sharper Blurrier
Drag the slider to preview, then open the full page for details.
Open 20/20 page
Most used levels: 20/20 20/40 20/50 20/100

Choose a vision level

20/10 → 20/15 → 20/20 → 20/25 → 20/30 → 20/40 → 20/50 → 20/60 → 20/70 → 20/80 → 20/100 → 20/200 →

What do “20/xx” numbers mean?

These are Snellen-style visual acuity values. For example, 20/100 means you see at 20 feet what someone with 20/20 vision could see at 100 feet.

Viewing distance, screen size, lighting, and eye health can all change what you perceive.

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