Figure 7. Chinese illustrations of diseases of the eye, 1846. Illustrations from this 19th century text demonstrate a symbolic representation of eyes. In the original, a text details treatments for the various ailments illustrated. A: Objects are seen out of focus; B: White dots on iris; C: White dots turn into bulbs; D: Suppressed qi does not flow freely. Adapted from the section “Eyes” from Yanfang xinbian (Newly Proven Formulas), Undated edition, publisher Jinzhang shuju, Shanghai.