. A treatise on the nervous diseases of children : for physicians and students. Fig. 3.—Normal Visual Fields for Colors. Fig. 4.—Normal Visual Field. (Grasset etRauzier.) the direction from which the sound issues without seeingthe object. Use also simple substances of different colors(pencils, papers, glass, etc.), and see whether the child fol-lows these objects. It is a matter of still greater difficulty to test the field INTRODUCTION—METHODS OF EXAMINATION. of vision. In very young children it may be altogetherimpossible, but after a child has reached the age of fivemonths or thereabouts, i

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. A treatise on the nervous diseases of children : for physicians and students. Fig. 3.—Normal Visual Fields for Colors. Fig. 4.—Normal Visual Field. (Grasset etRauzier.) the direction from which the sound issues without seeingthe object. Use also simple substances of different colors(pencils, papers, glass, etc.), and see whether the child fol-lows these objects. It is a matter of still greater difficulty to test the field INTRODUCTION—METHODS OF EXAMINATION. of vision. In very young children it may be altogetherimpossible, but after a child has reached the age of fivemonths or thereabouts, it may be possible to make a roughtest of the visual field by passing objects from above andbelow, as well as from the sides, into the visual field, andnoticing when the child begins to turn its eyes toward this.

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Keywords: ., bookcentury1800, bookdecade1890, bookpublishernewyo, bookyear1895