Bǎoguāng Dàorén 葆光道人 (“Daoist of Treasured Brightness”) — SòngYuán Daoist physician of unknown identity, conventionally credited as the compiler of the Yǎnkē Lóngmù jí 眼科龍木集 (the appended doctrinal digest preserved at the head of KR3em003 Mìchuán yǎnkē Lóngmù lùn 秘傳眼科龍木論). The sobriquet Bǎoguāng 葆光 derives from the Zhuāngzǐ 《莊子·齊物論》 phrase bǎo guāng zhī shī 葆光之師 — “preserving the light,” an apt Daoist-medical name for an ophthalmologist. His historical identity is unrecovered; no biographical entry survives in any standard catalogue (《宋史·藝文志》, 《直齋書錄解題》, 《經義考》) and he is not listed in CBDB. The doctrinal idiom of the Yǎnkē Lóngmù jí (use of liù shí 六識, wǔlún bākuò 五輪八廓, and the Lóngmù 龍木 / Lóngshù 龍樹 attribution-frame) places him in the Daoist-medical reception of Buddhist ophthalmological materials, most plausibly in the late Sòng or early Yuán. His name survives only as the editorial signature of the Lóngmù lùn digest; the modern conventional dating of his floruit is therefore 11th–13th century, though strict philological narrowing is not currently possible.