Effects of inferior oblique muscle-weakening surgery on the Bielschowsky head-tilt phenomenon in patients with superior oblique palsy habitually fixating with the paretic eye

摘要

To evaluate the usefulness of inferior oblique (IO) weakening surgery on a paretic eye for correcting vertical deviation in three positions of gaze by comparing the surgical results in 2 types of unilateral superior oblique (SO) palsy.