The image you see on the monitor is doubled and distorted to work with the LEEP optics in the headset. Each eye only sees the image for that eye and the optics

The image you see on the monitor is doubled and distorted to work with the LEEP optics in the headset. Each eye only sees the image for that eye and the optics focus the light so it appears to come from infinity, not inches from your eyes. , so there shouldn't be any eye strain.