New stereotest using a 3-dimensional (3D) display with the (A) conventional method and (B) proposed method.

(A) The conventional stereotest using a 3D monitor display. The 3D monitor and shutter glasses cause binocular disparity and the subject feels the difference in depth between the stereoimage and the background as shown. In this case, the stereoimage is located in front of the 3D monitor panel and the background image is located at the 3D monitor. (B) The proposed stereotest using a 3D monitor display. The 3D image is located at the 3D monitor panel and the background image is located behind the 3D monitor as shown.