IANAOphthalmologist, but I do work for one, and one of my jobs (as patient services manager) is helping patients and prospective patients choose a surgical or mechanical correction to their vision. Basically, I explain this stuff to people for a living.
Presbyopia is unlike regular nearsightedness (myopia) and regular farsightedness (hyperopia) in that while myopia and hyperopia are due to spherical aberrations in the eye, presbyopia is a mechanical problem. Your eye’s natural crystalline lens is suspended behind the iris, and tiny muscles move it back and forth to allow you to focus on near and far objects - much like the front lens of a telescope. As you age, this lens grows thicker and less flexible, and the muscles whose job it is to move the lens begin to lose their tone. As a result, it becomes difficult, then impossible, to focus on close objects. That’s why pretty much everyone, some time between the ages of 45-60, starts to need reading glasses or bifocals. Incidentally, the crystalline lens often becomes cloudy, then opaque, during this agine process - a condition also known as cataracts.
It isn’t possible to correct presbyopia with LASIK, since it is a mechanical problem, but many patients elect to undergo a procedure called blended vision or monovision. Kind of like organic bifocals, this procedure consists of correcting one eye (either with contact lenses or LASIK) for close vision and one for distance vision. It sounds strange, but in most patients, the brain quickly “learns” which eye is for which purpose and the patient can reduce or eliminate the need for glasses or reading glasses.
There are IOL that reduce or eliminate the need for reading glasses, IOLs are very expensive ($4000-5000 per eye is not unusual). Because of this, maost patients wait until their presbyopia advances into cataracts (at which point Medicare and other insurance plans will help defray the cost) before electing to get those implants.
Let me know if this helps, and if you have any other questions. You’re welcome to take the questions offline if you’re more comfortable with that.