Lazy eye(amblyopia) is usually caused when one eye is much weaker than the other eye. As a young child, the brain cannot accomodate two vastly different images from the eyes, so it more or less turns one eye off and just aknowledges the stronger image. Patching only works if done at a young age, while the optic tracts are still developing. The good eye is patched, and prescription lenses correct the vision in the bad eye. The brain is forced to start using the bad eye again
Unfortunately, most docs don't patch beyond age 7, as the optic tracts are well formed by that age and improvement is minimal. Surgery is done to the muscles around the eye to correct the inequality and is often very successful
__________________
For me there is only the traveling on paths that have heart, on any path that may have heart. There I travel, and the only worthwhile challenge is to traverse its full length. And there I travel, looking, looking, ...breathlessly.
-Carlos Castaneda
|