Abstract
Adults with a long-standing history of strabismus may present with a recent onset of diplopia or other sensory symptoms. Management of these patients typically involves determining the motor, sensory, and refractive status that was present prior to the onset of symptoms, and then recreating that visual environment. On occasion, patients with vertically incomitant strabismus may become symptomatic when they become presbyopic and need to wear bifocals. An evaluation and treatment schema has been developed by the author which, when followed, relieved symptoms in 86 of 102 consecutive adult patients with long-standing strabismus with a recent onset of diplopia or asthenopia.