The Oculus Rift causes very little eye strain, particularly compared to other standard displays or headmounts.

Normally, when you take a break from using a monitor or TV, the idea is to give your eyes a chance to focus and converge on a distant plane. This is a natural position of rest for your eyes.

With the Oculus Rift, your eyes are actually focused and converged in the distance at all times. It’s a pretty neat optical feature.