Cataract & glaucoma simulator
Cataract and glaucoma, seen from the inside
A cataract lowers contrast, yellows the world and turns every bright light into a veil. Glaucoma takes the edges first. Compare both against the original photo.
SightFrame: Vision Simulator
Simulate myopia, astigmatism, cataract, glaucoma and colour vision deficiency with your own camera — free on the App Store.
Frequently asked questions
- Why do lights smear with a cataract?
The clouded lens scatters incoming light, so bright sources bleed into a veil and contrast drops across the whole image. - Why is glaucoma called the silent thief?
Peripheral vision falls away first and the brain fills in the gap, so it is often noticed only after significant loss — which is why regular checks matter. - Does this replace an eye examination?
No. These are illustrations for education and patient communication only. Anyone with these symptoms needs a clinician, not a simulator.