My eyes surely do deceive me...
August 18, 2011 9:26 AM Subscribe
Can wearing glasses with the wrong prescription for an extended period of time affect the accuracy of a new eye exam?
posted by Falwless to health & fitness (2 answers total) 4 users marked this as a favorite
Approximately two years ago I received an eye exam from an eye doctor in whom I didn't have much confidence (speaking from hindsight). I received my glasses after that exam and they felt wrong. I knew there was an adjustment period for a new prescription, so I gave it several days. They still felt wrong. I wear glasses pretty much 24/7, btw.
I returned to the establishment and the same doctor (the only doctor there) checked my eyes again. They sent out for new lenses (I don't know how different the precription was from the first). When the lenses arrived, they installed them in my frames and they still felt really wrong. I was so confused and frustrated and angry at this point. I didn't want to go back. I should have gone to a different eye doctor and pressed for another exam. Unfortunately, I didn't.
I eventually got used to the glasses. They didn't cause me headaches (but I'm not headache prone). I didn't notice eye strain. But, as I now know, eye strain is really hard to notice when you get used to it on a daily basis. Eyes are so clever and tricky and are amazingly adaptive.
Cut to two years later. I went to a new eye doctor (this is a couple of weeks ago). The prescription I have been wearing, surprise!, is totally wrong. So wrong that he was amazed. So wrong that I have wondered if the old eye place inadvertently switched the right and left lenses when they installed them into my frames. After all, I held the frames while they sent in for the lenses. Now, this is pure conjecture on my part, of course, as I really have no idea what the hell went so wrong. But I respect this current doctor's opnion much more than I did the last. Various people I know referred me to him.
So, from this new exam I have a new (supposedly correct) prescription. I picked out new frames and now am waiting for the glasses to come in.
But part of me can't help but worry. Could the accuracy of my eye exam have been affected by wearing this wrong prescription for so long, including the entire morning before the exam? If my eyes were so adaptive to this very wrong prescription, how am I going to know if the new prescription is correct? He did warn me that there will be an adjustment period for this correct prescription, and I know this. But how will I know that I'm not simply adjusting to (another) wrong prescription? Does any of this make sense? I'm so worried that my eyes are tricking me, the doctor, everyone! Should I be concerned? I am farsighted, if it makes any difference, and I don't know the difference in powers between my last and new prescription. Would having this information help me? Thanks for any and all advice/help.