Can You Pass This 4-Stage Vision Test? Only 8% Succeed
- Bob Smile Smith
- 11 hours ago
- 2 min read

Have you ever wondered just how sharp your eyes really are? A viral video by Bright Side challenges viewers to prove their visual precision through a clever 4-stage eyesight test.
With over 62 million views and growing, it’s clear people are curious to find out if they truly see the world in high definition—or if their “windows to the soul” need a little cleaning.
👁️ What Is the Vision Test About?
The task is deceptively simple: in each round, you’ll see 10 color blocks, and your job is to find the one that’s slightly different from the others. Sounds easy? Think again.
The challenge consists of four stages, and the difficulty increases dramatically with each one. If you make just one mistake in any stage, you fail that level entirely.
Stage-by-Stage Breakdown
🟩 Stage 1: Easy
Success rate: 97%
Designed to warm you up and test basic color discrimination.
Most people breeze through this part—unless they're seeing cake (in which case, you're probably hungry, not colorblind).
🟨 Stage 2: Normal
Success rate: ~55%
Requires a bit more attention and visual focus.
If you pass this stage, congratulations—your eyesight is about average.
🟧 Stage 3: Hard
Success rate: ~30%
The differences are now extremely subtle.
Your concentration will be tested as much as your vision.
🟥 Stage 4: Very Hard
Success rate: Only 8%
Considered nearly impossible by most.
If you pass this, you may have tetrachromacy—a rare condition that allows people to see a wider range of colors than average.
What Is Tetrachromacy?
Tetrachromacy is a genetic trait that allows individuals to perceive up to 100 million colors, far more than the average person. It’s thought to be present in a small percentage of the population—especially women. If you made it through all four stages, you might be part of this elite group.
🧪 Ready to Test Your Eyes?
The full video gives you time to respond to each prompt. Remember:
One mistake per stage = failure for that level.
Stay focused. Some differences are so subtle, they almost look identical.
Comment where you got stuck—or brag if you reached Stage 4.
👉 Watch the test here: Bright Side Vision Challenge
Let’s Hear From You
Where did your vision begin to blur? Did you conquer all four stages? Let us know in the comments—and don’t forget to challenge a friend.
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