<prompt> A patient came with diplopia when he sees up and out, the defective extraocular muscle includesRight Superior rectusRight Superior obliqueLeft Superior obliqueRight Inferior rectus  <response>: A Right Superior rectus Diplopia: Double vision occurs when the conjugate movements of the eyes are altered so that images do not fall on corresponding areas of the two retinae. The result is that the brain interprets two images that are not exactly superimposed. If only one eye is affected, it will usually show a motion abnormality in the field of the involved muscle.PARALYSIS OF INDIVIDUAL EYE MUSCLESNerveMuscleDiplopiaDirection when looking Deviation of Eyeball IIInferior obliqueDownward and outwardUpward and inwardIIInferior rectusUpward and inwardDownward and outwardVILateral rectusInward internal squintToward the templeIIIMedial rectusOutward external squintToward the noseIVSuperior obliqueUpward and outwardDownward and inwardIIISuperior rectusDownward and inwardUpward and outward 