Tā jìnshì jiā sǎnguāng, kàn dēngguāng huì yǒu guāngyùn.
She has myopia plus astigmatism, so lights appear to have halos.
Tips
usage
Optometry context the tone is sǎn (sǎnguāng = astigmatism). With tone sàn, 散光 means 'to diffuse light' — different word, different context. Eye-exam report rows to know: 球镜 (sphere), 柱镜 (cylinder — astigmatism), 轴位 (axis).
