Wu Collection, Middle Volume Radical: Eye (mù) Yì; Kangxi strokes: 16; Page 815, Entry 32 Pronounced yì. According to the Expanded Rhymes (Guangyun) and Correct Rhymes (Zhengyun), and according to the Collected Rhymes (Jiyun) and Rhyme Anthology (Yunhui), the pronunciation is yì. According to the Jade Chapters (Yupian), it refers to an eye disease. According to the Correct Meaning Through (Zhengzitong), it refers to an obstruction of the eye. According to the History of Song (Songshi), Biography of Empress Xie: The empress was born with one eye obstructed (yì). Also, it is the name of a medicinal herb. According to the Materia Medica (Bencao), in the Explanations of Names (Shiming), it is called luó lè. Another name is yì zǐ grass, because its seeds treat eye obstructions (yì).