If mono-vision is a temporary solution as one's eyes continue to age, then why do it at all? Also, especially if the spread is usually only a -.50 diopter from plano, according to the info on presbyopia, the - .50 wouldn't last very long into one's 40s. How can a slight mono-vision correction seem to last so long as it seems to do on many people? Is it the combination with the plano eye? I currently have -1.50 eyes, am 40, and I feel like my focusing is "melting away" daily! How can going to a -.50 help if -1.50 seems to be disappearing?? And why are my 50 year old friends still only needing occasionally use of reading glasses?

This presbyopia and eyes changing after 40 is the WORST thing I have ever experienced....and it is NOT just reading vision...it's all arm's length vision. How can mono-vision help that middle distance loss of vision? What is in the works for treating presbyopia?

I think the theory behind monovision is that your undercorrected eye will give you greater near-focusing ability throughout your life. A temporary solution would be just the opposite; 20/20 vision prior to the age of 40.

After age 40, reading glasses are neaded for those who have 20/20 distant vision or better. From my own observation, the older, nearsighted relatives in my family, including my father have never needed reading glasses because they simply remove their glasses when they read. If both eyes were 20/20, my father would most definitely need reading glasses. If one eye were 20/20 and the other eye 20/80 or 20/150, my guess is that he would still not need reading glasses. That is monovision and it is permenant.

For me, I am convinced monovision will provide the best, most enduring vision ability throughout my life. The goal is to reduce our dependency on glasses and 20/20 vision does not provide that for most people over the age of 40.

I'm one of the lucky ones who have an excellent reading eye (my left; my right was almost as perfect) and am 56. I had my right lasiked for distance since I was nearsighted. Monovision is great--I don't need glasses at all. I can read tiny print, books, the computer, etc., yet can look farther away & see 20-20. My right eye is corrected to about the sidewalk, I guess, because when I jog the sidewalk & everything beyond is clear. I can see detail up the block & beyond I could never see before. I am very happy I didn't have my left one done also.

I will probably need an enhancement in September.
My left eye is 20/150 and my right is about 20/60.

I hope to get my right eye improved to 20/20, but am wondering if my left eye should even be messed with again. What is the vision in your left (weak eye)?

Thanks for your information.

On my first visit to the laser center, both my eyes were 20-200. Now when they test my left "untouched" eye, I can barely make out the 20-100 line--it's very distorted. I asked what my vision is now. My corrected eye on my last visit was -.50 plano & my uncorrected eye is -1.75 My left eye basically makes it possible for me to read & see the computer (my right is very blurry), but then I can look far away & see street signs, etc. I haven't achieved this totally without problems. I developed a "central island" & had double vision, one sign at a distance & a ghosting underneath, or 2 light signals, one on top of another--very frustrating. I had an enhancement in Feb or March. My far vision isn't perfect--I use drops very often & it's not as good as when it's dry. But I'm very happy with the results. When I was at the DMV (not for my license), I could read all the lines on their test--but I think that's 20-40. They told me I'm 20-20, but I think I have a little doubling side-to-side now. Good luck!