For Illustration, you may pick out LASIK or PRK in your 30s to right length vision. Then, if you achieve your mid-40s along with your in close proximity to vision is afflicted by presbyopia, you could possibly abide by up having an "improvement" using conductive keratoplasty. This is an Procedure https://share.evernote.com/note/596144d5-092e-a2a6-b0c7-2b6b7706c1a1