Recession of three muscles to reduce ocular oscillations in patients with Heimann-Bielschowsky phenomenon.

Heimann-Bielschowsky phenomenon (HBP) refers to unilateral vertical nystagmoid eye movements associated with long-standing monocular poor vision. The monocular vertical oscillations of HBP occasionally have large amplitudes and may be cosmetically objectionable and/or functionally disturbing. We report 2 cases of HBP in which recession of the superior rectus, inferior rectus, and inferior oblique muscles were successful in ameliorating the amplitude of oscillations.