To provide an eyesight training device for efficiently performing eyesight training.

This eyesight training device 1 includes: at least one lens 20R, 20L used for a user to see the outside world and enabling cyclic switching between the light transmitting state and the transmission limiting state; and a controller 30 connected to the lens 20R, 20L to generate a pulse signal for switching between the transmitting state and the transmission limiting state of the lens 20R, 20L. In this eyesight training device 1, the lens 20R, 20L is formed of a TN (twisted nematic) type LCD (liquid crystal device).