目めを光ひからせる

expression, ichidan verb

keep a watchful eye on; keep a sharp lookout

Implies vigilant observation, often by an authority figure or someone in charge, to prevent wrongdoing or mistakes.

• 先せん生せいは生せい徒とたちに目めを光ひからせている。

  The teacher keeps a watchful eye on the students.

• 警けい察さつが夜よるの街まちに目めを光ひからせている。

  The police are keeping a sharp lookout over the night streets.