Charak Samhita
सैन्धवंशौकरीदंष्ट्राकतकंचाञ्जनंशुभम्। तिमिरादिषुचुर्णंवावर्तिर्वेयमनुत्तमा॥२५१॥
saindhava, tusk of boar, kataka – strychnos potatorum may be used in the form of either powder or varti as collyrium which is excellent remedies for timira (cataract) and such other eye-diseases.
english translation
saindhavaMzaukarIdaMSTrAkatakaMcAJjanaMzubham। timirAdiSucurNaMvAvartirveyamanuttamA॥251॥
hk transliteration by Sanscript