IOL Vision Simulator
See how the same scene looks with a cataract and after surgery with different intraocular lenses (IOLs). Choose the patient's condition and a lens from the menus, then drag the divider or press Autoplay.
Text size
Choose what to compare
Patient's eyes
Lens and scene
Pick options from the menus, then drag the divider across the image. Astigmatism is an uneven eye surface that stretches and smears images.
Illustrative simulation only. It is not a diagnosis or a prediction of your results.
This view in words
Selected lens
What you may notice
Lens comparison
| Lens | Far (road) | Arm's length (laptop) | Near (book, phone) | Night halos and glare | Astigmatism |
|---|
Typical patterns only. Toric versions of EDOF and multifocal lenses also exist. A halo is a ring of light around a bulb or headlight.
Important information
- Illustrative only. This is a simplified visual approximation, not a measurement or a prediction of any person's result.
- Not medical advice. It does not diagnose any condition and is not meant to guide clinical decisions. Only an eye doctor who has examined you can say which lens suits you.
- Results vary. Real vision depends on your eyes, other eye conditions, pupil size, the surgery and the exact lens model. Some effects, such as halos, may ease over time.
- Screens have limits. A screen cannot reproduce real brightness, glare or distance, and the picture changes with your screen settings.
- Not actual patients. The driving scene is an edited photograph. The dinner, laptop and reading scenes are AI-generated images, with day or night lighting added digitally. The lens categories are generic and not tied to any brand.
Clinical review and sources
General reading
- American Academy of Ophthalmology: Intraocular Lenses (IOL) for Cataract Surgery
- American Academy of Ophthalmology: Presbyopia-Correcting IOLs
- EyeWiki (AAO): Toric IOLs
- National Eye Institute: Cataracts
- PubMed: Multifocal and Extended Depth-of-Focus Intraocular Lenses in 2020
These pages explain cataracts and lens types in general. The strength of each visual effect in this simulation is an approximation and is not taken from them.