ophthalmople'gia

[G. ophthalmos, eye, plege, stroke.] Paralysis of one or more of the motor nerves of the eye. fascic'ular o., o. due to a lesion in the pons, nu'clear o., o. due to a lesion of the nuclei of origin of the motor nerves of the eye. o. exter'na, paralysis affecting one or more of the nerves supplying the extrinsic eye-muscles, o. inter'na, paralysis affecting only the branches of the third nerve supplying the iris and ciliary muscle, u. partia'lis, incomplete o., o. involving only one or two of the extrinsic or intrinsic ocular muscles, o. progre i'va, progre ive upper bulbar palsy, due to degeneration of the nuclei of the motor nerves of the eye. 0. tot a'lis, paralysis of all the motor nerves of the eye, those supplying both the extrinsic and the intrinsic muscles. or'bital o., o. due to some lesion within the orbit.