Short answer: a monofocal lens sharpens one distance with reading glasses, a multifocal covers far and near but does not suit every eye, and a toric corrects astigmatism. The choice is medical, made after precise measurements and a lifestyle assessment.
Cataract surgery replaces the clouded natural lens with an artificial one that stays in the eye for life. The type chosen shapes how your vision feels afterwards, so it is worth understanding before your consultation.
The main types
- Monofocal: excellent clarity at one distance (usually far) with reading glasses. The most common and predictable option.
- Multifocal / EDOF: aims to cover several distances and reduce glasses dependence, but can cause halos around lights at night and is not suitable for every retina.
- Toric: corrects astigmatism and is available in monofocal or multifocal versions.
How the surgeon decides
- Precise axial length and corneal curvature measurements.
- Retina and optic nerve assessment — with existing damage, multifocal is often unsuitable.
- Your lifestyle: frequent night driving? screen work? long reading sessions?
- Your personal expectations, which are a core part of the consultation.
Questions to ask
- Why is this type right for my eye specifically?
- What will I still need glasses for?
- What side effects are possible with this lens?
- What are the options if the result differs from expectations?
Once the lens is decided, read the preparation guide and the recovery timeline.
Medical disclaimer: this article is general education, not a substitute for examination or medical advice. Timelines are approximate and vary between cases; the right plan is decided after an exam with your specialist.