I have worn contacts for being near-sighted for 23 years. I have been seeing the same Eye Doctor for 10 of those.
When I turned 40, he really begn to worry about my near vision. Everytime I would visit he would check that. I told him I was reading and seeing up close just fine.
Just after I turned 43 I noticed that my arms were getting too short and I was pulling the computer monitor in closer. LOL
On my next visit I told him. He did the exam and gave me a pair of contacts. While waiting for the lenses to settle I was going to read a magazine. I noticed that with one eye I still could not see well up close.
He had fitted me for monocular vision. He gave me a lens for up close in the left eye, and distance in the right eye. I am right eye dominant, so I told him to switch the eyes. I explained that I am a shooter, and needed to be able to focus on the sight.
He switched them and adjusted the perscription on the right eye so that I focus right at the distance the sights are. I can now see the sights great, and I still have my distance vision in my left eye. I thought it would be awkward to have 2 different perscriptions in, but I don't even notice. Your brain compensates and ignores the blurry image.
It was the best compromise for me, and I recommend anyone with the same problem ask their Eye Doctor about it.