We reviewed two studies on 5/12/2015 as a service having to do with different regimens of patching for amblyopia.

The first was between prescribing all waking hours patching and 6 hours a day patching for more severe amblyopia in kids younger than 7. That study showed no difference between the two prescribed regimens.  Pub Med Link

The second study compared 2 hours and 6 hours of prescribed patching for moderate amblyopia in kids less than 7. There were no differences between groups. Pub Med Link

Both studies suffered from the fact that they weren’t monitoring the true hours of patching and that is probably why there were no difference between groups.  Both were well known PEDIG studies.