Brown syndrome is a problem with a tendon that attaches to the eyeball. Most cases are congenital, which means they are present at birth. Here's what you need to know about this condition.

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Brown syndrome is a problem with a tendon that attaches to the eyeball. In Brown syndrome, this tendon can’t move freely. This limits the eye’s normal movement. Brown syndrome is a rare disorder. It is usually present at birth (congenital). In some cases, it occurs later in life (acquired).