JAMA: Amblyopia is the leading cause of monocular visual impairment in
children, affecting 3 percent in the United States. Amblyopia has
traditionally been viewed as a monocular disorder that can be treated by
patching the fellow (opposite) eye to force use of the amblyopic eye,
but it does not always restore 20/20 vision or teach the eyes to work
together. Because amblyopia arises from binocular discordance, binocular
treatments are likely to yield better vision outcomes. However, it is
unclear whether binocular treatment is comparable to patching in
treating amblyopia.