to close and open the eyes quickly, once or several times
I blinked many times so that my eyes could adjust to the bright light.
When the bright camera flash went off, he instinctively blinked to protect his eyes from the sudden burst of light.
The tired student had to blink repeatedly to stay awake during the long and boring lecture.
As she approached the dusty old bookshelf, she noticed a hidden compartment that was revealed when she blinked a particular book, like a secret mechanism.
