Publisher's Synopsis
Excerpt from Technic of Refraction, Trial Case and Refractive Instruments: A Manual of Practical Refraction With Instructions for the Operation of the Trial Case and Refractive Instruments and Methods for Successfully Carrying Out a Case of Ocular Refraction
Tests for Color Blindness - Holmgren's Wool test-jen hing's self-recording Test - Williams Lantern Test Nagel's Test.
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This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
