The Patalas:— Of the Patalas, two are in the eye-lid (Vartma-mandala) and four in the eye proper, wherein occurs the dreadful disease known as the Timira (loss of vision). Of these four the first or anterior coat (Patala) supports the humour Jala and light (Tejas), *[1] the second coat or Patala (choroid) is supported by muscles; the third coat or Patala (Sceroim and Cornea) consists of Medas (lit. fat) and there is the fourth which is a fifth part of the whole and is known as the Drishti. There are, however, divisions and sub-divisions of these coats. 9.
The different parts of the eye-ball are held together by the blood-vessels, the muscles, the Vitreous body and the choroid.†[2] Beyond the choroid, the eye-ball is held (in the orbit) by a mass of Śleshmá (viscid substance — capsule of Tenon) supported by a number of vessels. The deranged Doshas which pass upward to the region of the eyes through the channels of the up-coursing veins and nerves give rise to a good many dreadful diseases in that region. 10.
Purva-rupa, etc.:— Cloudiness of vision, slight inflammation, lachrymation, mucous accumulation, heaviness, burning sensation, sucking pain (D. R.-aching pain) and redness in the eyes are indistinctly manifest (in the incubatory stage) in such cases. In cases of an inflammation of the Vartmas (eye-lids) the eye seems as if studded with the bristles of worms (Suka) and attended with pain (as if pricked into with thorns) and a sensible impairment of the faculty of the eyes in detecting
