I had cataract surgery and do not need reading glasses anymore. Will this result last "forever"?

Maybe. A patient's vision after cataract surgery usually does not change so long as there is no health problem affecting the retina or cornea.
It should. You are probably a little nearsighted or have favorable astigmatism. In all likelihood, this will last.
As long as life. I am guessing you had multifocal lenses put in at surgery which allows vision at far and near. Provided nothing else goes wrong with your eye, this result can last the rest of your life. Your eye is still susceptible to other conditions that can affect vision like macular degeneration which is independent of cataract surgery. Enjoy your new and exciting vision.
Hopefully. Sometimes refraction can change (effective lens position shift right after surgery) or scar tissue like posterior capsule opacification can occur.
Probably. If you are healed completely after cataract surgery, your vision should remain the same from now on unless you develop other eye issues (such as glaucoma, macular degeneration, etc).

Related Questions

Will I need reading glasses to correct presbyopia after I have cataract removal?

Sometimes. The majority of lenses inserted after cataract removal are single vision, corrected for distance, and you will need to have eyeglasses to see at near. Newer lense designs are now coming on the market to correct vision at all distances. You can discuss this with your ophthalmologist who is doing the surgery. Usually there is an extra charge for these "premium" lenses. Read more...
Maybe. If you select an intraocular lens that corrects you for distance vision, you will need to wear glasses to read. The only option to read after cataract surgery is to set one eye for distance and the other for near (monovision), or if you are a candidate, select an advanced technology bifocal implant in both eyes. Your ophthalmologist should be able to help you with this decision. Read more...

I had a cataract surgery 15 days ago but I still can't read well even with +4 reading glasses. What should I do?

Surgery. Do not worry...People may require up to 90 days to have their best vision after surgery. Keep using your drops and give yourself more time to heal... Read more...
Too early to judge. We typically don't prescribe new glasses until one month after surgery. In some cases people get along just fine with temporary readers. However, if you have significant astigmatism, no temporary glasses will be sufficient. You need to give this more time. Read more...
Patience. If your surgeon says there were no complications and your retina is healthy you should be able to read as soon as you get the proper reading prescription( which may not be +4). There is also an issue of what kind of vision is in your other eye which possibly could be affecting your reading. Read more...
Cataract surgery. Vision after cataract surgery can take a number of weeks to stabilize. If you have significant astigmatism, you may need to get this corrected before reading glasses or bifocals will help you read. Read more...

Are astigmatic and presbyopic IOL's examples of what is known or referred to as "accommodating" IOL's for cataract surgery?

Yes. The other way around, accommodating IOLs are a subset of presbyopia correcting IOLs. In order to correct presbyopia, you can use multifocal IOLs, accommodating IOLs and monovision. In order to best correct presbyopia, your astigmatism needs to be minimized to less than 0.5 diopter. There are presbyopia IOLs that correct astigmatism. These are the so-called toric IOLs Best wishes. Read more...