Fig. 6. Abnormal retinal correspondence is the cortical adjustment in strabismus that permits fusion of similar images projecting onto noncorresponding retinal areas from object points peripheral to the area of conscious regard. Suppression eliminates the diplopia caused by object points within the area of conscious regard projecting onto noncorresponding retinal areas. (From Symposium on Strabismus, Transactions of the New Orleans Academy of Ophthalmology. St Louis: CV Mosby, 1971.)