"Retinal diplopia" associated with macular wrinkling.

Binocular diplopia is usually due to misalignment from ocular motor dysfunction. Three patients with chronic binocular vertical diplopia and small comitant hypotropic deviations due to macular displacement (heterotopia) associated with monocular retinal wrinkling are described. This maculopathy was idiopathic in two and secondary to treated retinal detachment in the third. Displacement of the macula by vitreoretinal traction is an unusual cause of binocular diplopia that requires careful ophthalmoscopy to diagnose.