Could the drug Valproic Acid have a role in treating vision problems, such as double vision and amblyopia?===================Some background: Musical perfect pitch is something that generally has to…Continue
Started Oct 21
My son has a history of amblyobia and strabismus, noticed at about age 3. Strabismus was due to farsightedness, and glasses straightened that out. We patched and at times used atropine drops to address the amblyopia, and got his visual acuity pretty good, though not quite as good as his "good" eye.
Come to find out a year ago that he has double vision. And has apparently had it for years. The eye doc missed it. His weak eye would point up and out. A weaker glasses prescription brought the eyes together side-to-side (more or less). Tried a temporary stick-on prism to address the verticle mis-match. All that did was drive has weak eye to turn up farther. A stronger prism drove it up even more. And putting the prism on upsidedown actually brings the eye down, to a point. All as if the brain is trying to maintain about the same separation between the two images from the two eyes. The eyes will not fuse the images together.
To assess whether the eyes were working together or not, the eye doc would rely on covering one eye, then the other, while the boy was told to look at a target across the room, with the doc looking for movement in the eyes as they were uncovered. Trouble is, with his good eye looking at the target and the weak eye pointed up, when the good eye was covered, my son did not understand that he was supposed to shift his weak eye to look at the target; he just kept it pointed up and above the target. So the doc never picked up on the problem.
There are random dot stereograms used with polarized glasses to check for stereo vision; why this doc didn't use such a test I do not know. Maybe there is a valid reason. But it's a pretty simple and quick test. Had such a test been used, the double vision likely would have been noticed a whole lot earlier. Would it have made a difference in the end? I don't know, but as a parent I would like to have known that my kid lacked stereo vision, so when he did things like make a mess pouring juice into a cup I would know it was maybe due to his vision and not simply being careless. I might not have groused at him as much over the years.
The doc seemed to run out of ideas to try. I found and read Sue Barry's book along the way. I now have my son in vision therapy with another eye doc. While there is some reason to be hopeful, there is also the recognition that this double vision may very well be permanent.
I have found this site in my various internet searchings. Good luck to all the others here looking to gain stereo vision.