The clinical use of prisms; and the decentering of lenses (1893)
Maddox, Ernest Edmund, 1860-1933 · Bristol : J. Wright ; London : Simpkin, Marshall, Hamilton, Kent · leaf 175
Fig. 64.—The Localiser. be used with two sights so disposed as to alwaysbe in a line at right angles to any trial-framein which it is placed. One pupil is localised at atime, all that is necessary being to increase ordiminish the breadth of the frame till the twosights and the centre of the pupil… … Fig. 65.—The Localiser in use. looking at the pupil of the surgeons observing eye,,by doing which the two visual lines (i.e., that of theobserving and that of the observed eye) come to*practically coincide. If the patient is a child it isquite easy to excite its interest in its own miniature…
Lenses
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