Are intraocular lens implants a permanent cure for cataracts and myopia?

Not a total cure: When a lens is no longer clear, it can be replaced by a lens implant, so it is a cure for a cataract. A natural lens can change its power to focus on objects at different distances. However, the lens implant is plastic and only has one power (not adjustable inside the eyeball), so it is sort of a partial cure for one's myopia.

Yes: Cataract surgery with intraocular lenses can permanently treat most forms of myopia. There are some people with excessive myopia that continue to progress even with a lens implant although this is rare.

Practically speaking: Because the eye is living tissue, changes are always possible. Cataracts are permanently removed from the eye so they do not return. A clouding of the lens capsule may occur after the removal, causing a "secondary cataract" but generally can be treated with an in-office laser. Myopia prescriptions can be greatly reduced or eliminated with lens implants. Eye health risk factors of myopia remain.

Usually: Myopia is usually caused by the eye being longer than average, the cornea being steeper than average, or both. Cataracts develop in everyone eventually. During surgery, the doctor replaces the catarac with an intraocular lens implant. This lens has the capacity to permanently correct myopia (much like a contact lens does), and definitely cures cataracts.