The American journal of the medical sciences (1827)
[Thorofare, N.J., etc.] Charles B. Slack [etc.] · leaf 85
81 Loring, Relative Accommodation. 1869.] the eye. As the admirable diagram, with which he illustrated his experi- ments, is more elaborate than is necessary for the present purpose, the same principle has been applied to a single degree of convergence. In this diagram (Fig. 1) the eyes are… … object at 18 inches from the eye. The visual axes are represented by x and x' \ the object viewed consisting of small type, is situated at their point of intersection, and is denoted by o, which, as the accommodation is adjusted for that distance, is seen with distinctness. Now, the strongest…
Medicine
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