🌐 English
What They See

What They See

Experience Different Perspectives

Many of us see the world clearly. But many do not. Step into their world and see What They See.

Coming Soon to the App Store

Four Ways to See the World

Use your iPhone camera to experience real-time vision simulations based on scientific research.

👓

Vision Impairments

Experience common eye conditions that affect billions worldwide.

  • Myopia (Nearsightedness)
  • Hyperopia (Farsightedness)
  • Astigmatism
  • Cataracts
  • Baby Vision (0-60 weeks)
🎨

Colorblindness

See how 300+ million people perceive color differently.

  • Deuteranopia (Red-Green)
  • Protanopia (Red Blindness)
  • Tritanopia (Blue-Yellow)
  • Monochromacy (Complete)
📖

Dyslexia

Understand the reading challenges faced by 10% of the population.

  • Phonological Dyslexia
  • Letter Position Dyslexia
  • Surface Dyslexia
🦅

Animal Vision

Explore how different species perceive the world around them.

  • Dog, Cat, Horse
  • Eagle, Owl
  • Bee, Fish, Mouse
  • Snake (Thermal Vision)
  • Mantis Shrimp (16 colors!)

5B

People projected to have myopia by 2050

8%

Of men are colorblind

22+

Vision simulations to explore

#1

Cataracts are the leading cause of blindness

Go Beyond the Simulation

Every filter includes a comprehensive Deep Dive with fascinating facts, scientific explanations, and real-world context.

Scientific Research Global Statistics Treatment Options New Filters Added Regularly Famous Examples Colorblind Tests Fun Facts

Ready to See Differently?

Download What They See and start building empathy through experience.

Coming Soon to the App Store