In modern cataract surgery, patients have many choices as to the type of intraocular lens they receive during surgery. That choice will impact the degree to which they need to wear glasses after surgery. No surgery eliminates glasses, but the need for glasses can be remarkably reduced with certain intraocular lenses.
A source of some confusion is the difference between Light Adjustable Intraocular Lenses (LAL) and Extended Depth of Focus Lenses (EDOF). The main difference is CUSTOMIZATION. All these lenses give “extended depth of focus”, but only the LAL is customizable. The meaning of customizable here is the fact that the lens can be modified within your eye after surgery. This gives you a chance to “test drive” your vision and make changes to some degree to improve the vision for your needs. The standard EDOF does not allow that after-surgery adjustment.
However, each lens can deliver a wide range of vision from distance to intermediate. The EDOF can give better near vision for close craft work and smaller print than a LAL typically can. There is a trade-off for the closer vision with an EDOF, though: Night Halos. Night halos around headlights are well known with some EDOF lenses, in particular. This halo is not common with a LAL intraocular lens.
Pick an LAL if you like the idea of assisting in the process of selecting your vision after surgery. Pick an LAL if you are ok with excellent distance vision and a blend of INTERMEDIATE vision to see your cellular phone and Kindle with both eyes open.
Pick an EDOF if you want the best chance of NEAR vision for reading closer and are “OK” with some halos around headlights at night. These halos will likely require night-driving glasses.
No matter what choice you make; it will be right for you.