Effect of visual training on the vertical vergence amplitude.
Visual training has an effect on the vertical vergence amplitudes. Three mature symptomatic patients exhibited a significant increase in the vertical vergence which compensates for the vertical heterophoria. Subjects with normal binocularity and hence no vertical heterophoria did not exhibit increased vertical vergence amplitudes after training.
D000328:Adult; D003290:Convergence, Ocular; D005133:Eye Movements; D005260:Female; D006801:Humans; D008297:Male; D009988:Orthoptics / Q000379:methods*; D014786:Vision Disorders / Q000628:therapy