. A treatise on the nervous diseases of children : for physicians and students. ped on both sides. Ordinarily the axes of the eyes are parallel, frequently, however, the righteye is directed a little more upward and slightly outward. She is able tofollow an object with both eyes if it be lowered or elevated in the medianline. If the object be approached to her face, keeping it in the saggital planeshe follows it readily, and she will keep her eyes fixed upon a finger heldnear the nose for a long period without fatigue. These, however, are all themovements of which the eyeball is capable. The t
. A treatise on the nervous diseases of children : for physicians and students. ped on both sides. Ordinarily the axes of the eyes are parallel, frequently, however, the righteye is directed a little more upward and slightly outward. She is able tofollow an object with both eyes if it be lowered or elevated in the medianline. If the object be approached to her face, keeping it in the saggital planeshe follows it readily, and she will keep her eyes fixed upon a finger heldnear the nose for a long period without fatigue. These, however, are all themovements of which the eyeball is capable. The two internal recti contractfreely if required in order to bring the eyes into convergence for near , however, one of these muscles be required to act in unison with the ex-ternal rectus of the opposite eye for a conjugate lateral vision, there will befound an utter inability to do so. The two external recti muscles are eithercompletely paralyzed or very deficient. The internal recti are not whollyparalyzed. When the child wishes to see an object situated to the side. Fig. 159.—Girl, Eight Years Old, withCongenital Pleuroplegia. (Scha-pringer.) 6o6 THE NERVOUS DISEASES OF CHILDREN. of the median plane, instead of rotating the eyes she turns her entire fundus appears normal, except that the vessels are a little moretortuous than usual. The functions of the ciliary muscles are is no strabismus convergens. The size and mobility of the pupilsare normal. When the tongue is protruded it appears to the left of the me-dian line; the left half is a trifie smaller than the right. When eating, thechild is obliged to use its finger to dislodge food from the cheeks. She isunable to masticate hard substances, such as crusts. She can move thelower jaw laterally toward the right side, but not toward the left; thus indi-cating a paralysis of the right pterygoid muscle. She has uvula bifida. Thereis an hypertrophied condition of the canine ligament of the right si
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