Māma yǎnjiān, mǎshàng jiù fāxiàn wǒ huàn le fàxíng.
Mom has eagle eyes - she noticed I changed my hairstyle right away.
Tips
usage
Often paired with 手快 (quick-handed) as the set phrase 眼尖手快 - 'sharp eyes, quick hands', praising someone who notices and acts fast. Casual / spoken register.
memory
尖 means 'pointed/sharp' - the same character is used to praise other senses: 鼻子尖 (sharp nose, good sense of smell), 耳朵尖 (sharp ears, good hearing). The metaphor is 'pointed enough to detect what's small'.
