My right eye is the dominant one but there is this phenominon where there will be a rapid switching between right and left eye. It only occurs when I am focusing on something very close, right up to my eyes and about as far as 6 inches away. This back and forth switching occurs usually only once at a time (right left right) and it happens in a fraction of a second. Very fast. And only when I'm looking closely at something for an extended period of time, like nail trimming. Curiously this does not happen when I read. I would say the frequency of this switching is about every 5 seconds or so when focusing on a close object.
I've had glasses and contacts for 10 years now and have regular checkups. I wear either depending on what I feel like but not both at the same time. I don't know how long this has been happening but it's been on my mind only recently. I also use a computer practically all the time for work and play and have been doing so for over 20 years. I am 30 years old.
I have slight astigmatism in my right eye and am nearsighted. The optical power of my contacts is -1.75. Any ideas? I've scoured the Internet but have found nothing.
Your problem would not be due to your myopia or contacts. It could be related to eye muscle alignment/misalignment problems. Consider seeing a strabismus specialist (often listed under pediatric ophthalmologists) for an evaluation.
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