Abu Ruh Muhammad ibn Mansur ibn abi Abdallah ibn Mansur Jamani (also Gorgani), nicknamed Zarrin-Dast was an eleventh-century Persian oculist. Zarrin Dast means the Golden Hand in Persian, a reputable name for an eye surgeon. He flourished under the Seljuq sultan Abu-l-Fath Malikshah ibn Muhammad, ruling from 1072-73 to 1092–93. He completed in 1087–88, a treatise on ophthalmology entitled "The Light of the Eyes" (Nur al-ayun), in Persian. Sources Hirschberg: Geschichte der Augenheilkunde bei den Arabern (57 sq., Leipzig, 1905). Adolf Fonahn: Quellenkunde der persischen Medizin (38-41, 1910. Includes summary of the treatise, based upon Hirschberg). See also List of Iranian scientists Iranian ophthalmologists Year of death missing Year of birth missing 11th-century Iranian physicians