Fig. 1From: Kearns–Sayre syndrome with a novel large-scale deletion: a case reportApproximately 5° exotropia was found based on the Hirschberg test, and movements of both eyes were restricted in all gaze directions. Because of weakness in the levator palpebrae muscle, bilateral ptosis was slight and the upper eyelid always covered the upper third of the pupil when looking aheadBack to article page