The pen, the pencil, and the inferior oblique.
Ellis
Forrest J
FJ
D005133:Eye Movements / Q000502:physiology; D006801:Humans; D009121:Muscle Denervation; D009801:Oculomotor Muscles / Q000294:innervation / Q000503:physiopathology / Q000601:surgery*; D013285:Strabismus / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome