Binocular 3D Vision Fusion Measurement Technique

There are two major factors behind the visual discomfort for wearing glasses. One is the prism effect, in which the pupillary distance (PD) is out of the one between the optical center of the glasses. The other is the improper adjustment of the frame curvature, which causes distortion effects. These two factors may not be discovered due to the fast eye examination and the conscious perception of the inspected person’s old glasses of visual sight, which may cause visual discomfort after wearing the new glasses. Binocular 3D Vision Fusion Measurement B3D-VFM uses the subject’s visual choice with a double-slit plate inspection machine to measure the optic axis, combined with the curvature and curve rate of the frame, will effectively improve the visual fusion function. After being proved by Institutional Review Board (IRB), the Subjective fusion data of the 21 testees were measured 3 times compared with the Objective fusion, and it showed the data value was reduced by 83%. The new glasses technology ophthalmic dispensing technology developed in this experiment, for those who wear old glasses, have a difference in fusion. Then the comfort of the fusion rate reached to 91% of the technical experiment after effectively optimizing, and the effect of B3D-VFM is significant.