What do you advise for vertical heterophoria?

Vertical eye turn: An intermittent vertical eye turn in a child may represent a benign condition such as a congenital 4th nerve palsy. This can also be seen in adults. Closed head trauma may also be a cause and be in the patient's history. Although a vertical heterophoria may be longstanding and benign, it should always be evaluated by a qualified eye physician to rule out any underlying neurological conditions.