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Medical Forum / General / Vision / October 2006monovision and the dominant eye
I am now on my 4th attempt at lenses that work and still no go. After severe dizziness from the bifocal contact lens, we went back to trying monovision. I had slight monovision the last 10 years, so he made it stronger. However, another problem I have had is that I have been squinting for the last several months in my right eye. My right eye is the "distance" eye. According to this new doctor, the right eye is my dominant eye and he wanted to make that my reading eye. But because my left eye has been my reading eye for over 10 years, I was not able to make that transition. I was like a horse roaring my head all around to try to see correctly. So we went back to the left eye reading, and right (dominant) distance. But again, I am squinting in that eye. He would like me to switch the lenses and train myself to have my right (dominant) eye become the reading eye. Can anyone explain to me why the dominant eye should be the reading (lower prescription) eye? Shouldn't a dominant eye be the distance vision eye? I am not sure I understand what "dominant eye" actually means. Callling all optometrists out there, if you could explain that to me, I would really appreciate it. PS (These are RPG lenses, if that makes a difference to your explanation) Cant you just get some bifocal or progressive glasses or two pairs of contacts, one that undercorrects both eyes for reading and another pair to fully correct for distance? Presbyopia is not a problem for myopes, I have mild presbyopia and im not affected by it. Just trying to help. Do you like those suggestions? In another group I subscribe to, there is an annual award for "best post". I'd like to nominate the following post for an smv award: > Cant you just get some bifocal or progressive glasses OK so far. > or two pairs of > contacts, Are you seriously suggesting that somebody swap contacts every time they want to change from seeing near to far and vice versa? > one that undercorrects both eyes for reading That word "undercorrects" really bothers me. > and another pair > to fully correct for distance? Not sure what "fully correct" means either, but it doesn't bother me so much. > Presbyopia is not a problem for myopes, There are millions of people who would be happy to hear that. Unfortunately, that won't help them see. > I have mild presbyopia and im not affected by it. Really? > Just trying to help. Do you like those suggestions? I haven't laughed so hard in weeks!  SignatureDan Abel dabel@sonic.net Petaluma, California, USA Dan Abel said: > In another group I subscribe to, there is an annual award for "best > post". I'd like to nominate the following post for an smv award: > > > Cant you just get some bifocal or progressive glasses > > OK so far. It doesnt seem that Marcia is listening to me and the doctors here. She is going to be miserable fiddling with the monovision she cant tolerate. Even my own mother prefers to wear progressive glasses rather than monovision contacts. She can read without glasses but only at very close distances, too close for comfort really. Why cant Marcia just stick with glasses? She will be much happier! > Are you seriously suggesting that somebody swap contacts every time they > want to change from seeing near to far and vice versa? She only has to swap them out when driving. The rest of the time she is reading. The other option is she get two pairs of glasses if she doesnt like bifocals/progressives. A third option is she wear contacts for near and put her glasses on for distance. > That word "undercorrects" really bothers me. I wear glasses that undercorrect me so I am in focus at computer distance. She can wear contacts that undercorrect her so shes in focus at reading distance. If she reads at 16 inches, she needs a -2.5 undercorrection then she can have -2.5 glasses made to wear when she drives back home from work. Problem solved! If Marcia would read this and listen, she wouldnt be having that problem! > Not sure what "fully correct" means either, but it doesn't bother me so > much. Corrects her to 20/20, or whatever her BCVA is. > > Presbyopia is not a problem for myopes, > > There are millions of people who would be happy to hear that. > Unfortunately, that won't help them see. Yes it will. For low and moderate myopes, all they have to do is take their glasses *off* when reading like I do. High myopes may find it impratical except for reading tiny print. Therefore they can wear glasses or contacts that corrects all but -2.5 of their myopia so they can read at 16 inches all day like Marcia does. You make the dominant eye for distance. This is pretty standard for monovision. Sometimes people prefer dominant for near, but rarely. In the end, you go with what makes the patient happy. dr grant My dominant eye is the one that is distant. He insists it should be for near, and even though I still can't read smaller fonts with what he has given me, he says "I am uncomfortable making the left lens weaker"--the left lens is the one that is my reader and is not dominant. >You make the dominant eye for distance. This is pretty standard for >monovision. Sometimes people prefer dominant for near, but rarely. > >In the end, you go with what makes the patient happy. > >dr grant > My dominant eye is the one that is distant. He insists it should be for > near, and even though I still can't read smaller fonts with what he has given > me, he says "I am uncomfortable making the left lens weaker"--the left lens > is the one that is my reader and is not dominant. All things considered, I would think that YOUR comfort is what's important, not his. Personally, I would want my dominant (and/or better) eye set for distance, in spite of the fact that I probably spend most of my time reading -- you aren't likely to be endangered by something within reading distance, but being able to read freeway signs clearly might end up saving your life. >> You make the dominant eye for distance. This is pretty standard for >> monovision. Sometimes people prefer dominant for near, but rarely. >> >> In the end, you go with what makes the patient happy. You'd think, wouldn't you? SignatureCheers, Bev =================================== New sig on order, watch this space. Dr Grant, When I went in, I asked that he make the most slight change possible. I had a slight monovision for the last 10 years (RPG contacts). Somewhere in there, my eye doctor retired without me knowing so that I could get in a last visit. So here I was with no records, no nothing. Presbyopia has really progressed in the last year. My mono vision was : left, reader; right, distance. I asked this new guy to maybe make the distinction between the two greater. The first pair he made me, I cold not see anything well--near nor far--out of either lens. I have no idea what that is about. Next, he made me a bifocal right lens, and a distance left lens. WHile in the office, I could not make that right eye focus for reading, after 10 years of reading with left. So he told me, OK, switch them, and sent me home. The next day I spent so much time with my eyes fighting each other trying to bring things into focus that by the end of the day, I was incapacitated with nausea, had to go to bed by 7 pm with a pail by my bedside. I ran screamin back to him and left both lenses. I was pretty much going to give up on him. But I had already invested $250 with no lenses yet. So he wanted to take another try. I asked him to please just make me a left lens NONbifocal, but with a lesser prescription than my original one so I could maybe read better. He did so, and it was a little better, but I still can't read all the font sizes I need to read (I am an editor). I decided I would take it and he gave me a distance right lens, insisting he would prefer me to read with my right eye and distance with my left, saying that is because my right eye is dominant. Which is the opposite theory of all you guys. Meanwhile, the right one (distance) is about what my old right one was, but I am squinting (as I had been in my old one for nearly a year). I asked him why, he said, the eye is trying to "block out" the vision...which is why he thinks it should be the reader. I asked him, couldn't he scale it back a bit (I still see 10/20 in both eyes on the eye chart, even with the mono vision, so doesn't that leave room for a bit of a scale back, maybe 20/25?) He replied that he is uncomfortable scaling back the vision on my dominant eye. So what is making me squint in that distance eye, and what can I do about it? Meanwhile, I have been back to him nearly once a week for the last month and a half. That is more times than in 20 years added together of my previous guy. I am ready to give up, but I need to see to work. Anybody? >You make the dominant eye for distance. This is pretty standard for >monovision. Sometimes people prefer dominant for near, but rarely. > >In the end, you go with what makes the patient happy. > >dr grant Sorry, not 10/20...typo!! I meant 20/20! >Dr Grant, > [quoted text clipped - 57 lines] >> >>dr grant >I am not sure I understand what "dominant eye" actually means. Point to an object across the room with your finger. Close one eye, then the other. The one which remains pointed at the object is dominant. It's particularly noticeable to me when putting contacts in. When putting the left one in, I have to consciously switch from my "dominant" eye, to get the proper view for placing it right on the cornea (as opposed to getting it in the eye in general, and hoping it'll blink into place - that strategy seems to frequently get me a folded lens squeezed between my eyelashes). Signature- Mike Ignore the Python in me to send e-mail. Mike Ruskai schreef: >> I am not sure I understand what "dominant eye" actually means. > > Point to an object across the room with your finger. Close one eye, > then the other. The one which remains pointed at the object is > dominant. A little remark, try this with your eyes both corrected for distance please. One other remark, when "covering" the object (kind of looking through your finger/thumb )with your finger or thumb, keep BOTH eyes open. Then close one eye and see your thumb ON or just BESIDES the object. ON is the dominant eye. Hope this helps, Jan (normally Dutch spoken) |
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