Before revision: However, the flicker rates that are employed for alternating occlusion training are generally much slower than those employed by the widespread active shutter 3D glasses for viewing 3D television or cinema.
After revision: Flicker rates The flicker rates at which the occlusion is alternated between the two eyes in alternating occlusion training are generally much slower than those employed by the widespread active shutter 3D glasses for viewing 3D television or cinema.