Ashtangasamgraha 49.90

49.90

vapuṣmantaṃ śrutadharaṃ karoti triśatāyuṣam |

antrdhūmaṃ tasya majjā sudagdhaḥ kṣiptastaile saindhavaṃ cāgnivarṇam |

tulyaṃ hanyādarmanaktāndhyakācān nīlīrogaṃ taimiraṃ cāñjanena ||

handsome, capable of retaining what is heard, and living for three hundred years.
Its marrow, thoroughly burned by the antardhūma method and cast into the oil with an equal part of rock salt glowing like fire,
when used as a collyrium, cures pterygium, night blindness, cataract, nīlī eye disease, and timira.