These terms refer to different types of intraocular lenses (IOLs) that can replace your cloudy lens.

A monofocal lens has one set focus – usually set for clear distance vision; with it, most people will still need reading glasses for up-close work.

Multifocal lenses are like trifocals built into the lens: they have rings or zones that provide multiple focal points (distance, near, and sometimes intermediate). This means you can often read and drive without glasses, but the trade-off can be some rings/halos around lights at night because of the light-splitting design.

EDOF (Extended Depth of Focus) lenses are a newer tech that give a stretched focus: instead of distinct near and far zones, they provide a continuous range from distance through intermediate (great for computer distance) and some near, typically with fewer halos than multifocals, though maybe not as strong for very fine print.

Toric lenses are designed to correct astigmatism (that football shape of the cornea that causes blur). A toric can be monofocal, multifocal, or EDOF in type, but it has special alignment marks and powers to neutralize astigmatism. If you have significant astigmatism, a toric lens can sharpen your vision by addressing that, reducing need for glasses for distance.

So in summary: monofocal = one focus (usually distance), multifocal = multiple focuses (less glasses, but potential night halos), EDOF = extended focus (midrange king, minimal halos, might need readers for small print), and toric = astigmatism correction built-in. Your surgeon will recommend based on your eye measurements and priorities – sometimes combining features (like a toric multifocal if you have astigmatism and want range of vision).