What question did this study set out to answer?

This research aims to investigate how visual training affects vertical vergence amplitudes in patients with and without vertical heterophoria.

March 21, 2026

Effect of Visual Training on the Vertical Vergence Amplitude

Key Points

This research aims to investigate how visual training affects vertical vergence amplitudes in patients with and without vertical heterophoria.
Conducted visual training on three symptomatic patients with vertical heterophoria
Measured vertical vergence amplitudes before and after training
Compared results with subjects exhibiting normal binocularity
Significant increase in vertical vergence amplitude observed in symptomatic patients after training
No change in vertical vergence amplitudes in subjects with normal binocularity

Abstract

Visual training has an effect on the vertical vergence amplitudes. Three mature symptomatic patients exhibited a significant increase in the vertical vergence which compensates (or the vertical heterophoria. Subjects with normal binocularity and hence no vertical heterophoria did not exhibit increased vertical vergence amplitudes after training.

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