Indian Medicine (Medicin), translated by C. G. Kashikar c10.14

c10.14

One third of the eye consists of the black part (*kṛṣṇamaṇḍala*) the seeing organ (*dṛṣṭi*— the pupil or lense ) occupies one seventh of the black part. The eye contains 5 circles, viz. the eyelashes, eyelids, the white part (*śveta*), the black part and the *dṛṣṭi* (pupil). There are six joining places (*sandhi*), viz. between the eyelashes and eyelids, between the eyelids and the white, between the white and the black, between the black and *dṛṣṭi*, on the eye-star (*kanīnakā*) and on external eye-angle. There are further two membranes (*paṭala*) on the eyelids, and four on the eye; one of these four is connected in fact with the transparent substance (*tejojala*) and these four are affected by the frightful disease *timira* (Cataract). Their diameter carries altogether a fifth of *dṛṣṭi* (Su 6.1; AS 3.5).