ba̍k-kiànn-lîn目鏡仁

lens

lens (especially for one's eyeglasses)

English Wiktionary, “目鏡仁” (CC BY-SA 4.0) — https://en.wiktionary.org/wiki/%E7%9B%AE%E9%8F%A1%E4%BB%81 · confidence: Medium (Wiktionary, Hokkien)