w:Sushruta, Sushruta Samhita Vol 3 (1916)
“ Now we shall describe the pathology of the twelve kinds of disease peculiar to the region of the Drishti (pupil) , as well as of the one which is known as Timira (loss of vision) affecting the Patala (coating over the pupil) . 2. All external objects appear dim and hazy to the sight when the deranged Doshas of the locality passing through the veins (Sirá) of the eye, get into and are incarcerated within the first Patala (innermost coat) of the pupil (Drishti) . 3. ”
