Dèng Yuàn 鄧苑 (zì Bówàng 博望), late-Míng / early-Qīng ophthalmologist and jǔrén of Qīngjiāng 清江 (modern Zhāngshù 樟樹, Jiāngxī). He passed the provincial examination in Shùnzhì 8 (1651) and served as magistrate of Lùxī 陸西 county in Yúnnán, where he reportedly governed with integrity and was beloved by the people. Dèng is recorded as having turned from Confucian scholarship to medicine on the strength of the Sòng-Confucian dictum 為人子者不可不知醫 (“a filial son cannot be ignorant of medicine”) and Fàn Zhòngyān 范仲淹’s “if not a good minister, then a good physician” (不為良相即為良醫). He specialized in ophthalmology and was a competent ink-plum painter. His work in the Kanripo corpus is Yīcǎotíng mùkē quánshū 一草亭目科全書 (KR3em009), a one-juan ophthalmology monograph compiled c. 1644 and reissued in 1717 by Nián Xīyáo 年希堯 at Jīnlíng. The Kanripo catalog meta classifies him as Míng, but his exam date places him in the early Qīng — he is best understood as a MíngQīng transitional figure. He is not in CBDB.