See the difference
Explore how common eye conditions may affect vision. Choose a condition and compare mild, moderate and severe illustrative effects.
Choose a view
Normal vision
The scene is shown without a simulated visual effect.
Important: This simulator is an illustrative awareness tool and is not intended to reproduce exactly what every person with an eye condition sees. Symptoms and severity vary between individuals. It is not a diagnostic test. Anyone concerned about their sight should seek advice from an optometrist or appropriate healthcare professional.
Background photograph: Eryri/Snowdonia, Wales. Photo by Hefin Owen, via Wikimedia Commons, CC BY-SA 2.0.