Vision Simulator Tools

World Animal Day is 4 October. This year's theme is “See the World Through Their Eyes”.Try it on your own dog →

Free browser tools

See the world through other eyes

Pick a tool, drop in a photo or turn on your camera, and watch the world change. Nothing is uploaded — every pixel is processed in your browser.

Get it on the App Store Browse the tools

Dog vision simulator

Dog vision simulatorWhy your dog misses the red ball, and which toy colour actually works.Learn more

Cat vision simulator

Cat vision simulatorBlue-grey, brighter, and blurrier up close.Learn more

Colour blindness simulator

Colour blindness simulatorProtanopia, deuteranopia and tritanopia, with a severity slider.Learn more

Myopia simulator

Myopia simulatorDrag the dioptre slider and try to read the last line.Learn more

Cataract & glaucoma simulator

Cataract & glaucoma simulatorYellowing, glare and a narrowing tunnel.Learn more

QR code to download AnimalLens

AnimalLens: Animal Vision

See through the eyes of 90 animals in real time, and pick the toy colour your dog can actually see — free on the App Store.

Get it on the App Store