Binocular stereoscopic examination

The synoptophore combines stereoscopic pictures to inspect on the basis of simultaneous viewing and fusion. Generally, only qualitative inspection of stereoscopic viewing can be conducted. If combined with the stereoscopic picture of random point synoptophore, it can be used for quantitative examination of telestereopsis. The picture has no single eyeliner and hint signal, and has high accuracy.

1) Place the borescope tube at the subjective oblique angle of view.

2) Put a pair of stereoscopic pictures into the picture slots of the left and right lens barrels, first check with the picture with a large parallax, and then check with the stereoscopic picture with a small parallax, so that the true stereoscopic acuity can be detected.

3) Ask the examinee about the distance and sense of front and back distance of the image on the picture.