金眼科，銀外科 [－－－－银－－]

Jyutping gam1 ngaan5 fo1 ， ngan4 ngoi6 fo1
Pinyin jīn yǎn kē ， yín wài kē

Definitions (Wiktionary)
  1. phrase
    Describes the relatively relaxed lifestyle of ophthalmology and surgical doctors while having a good source of income.