Lang J, Huber C
Albrecht Von Graefes Arch Klin Exp Ophthalmol. 1977 Sep 30;204(1):39-44. doi: 10.1007/BF02387415.
The prescription of weak prisms may induce monocular diplopia or binocular triplopia. The monocular double image is due to internal reflexion at the glass-air interface. The intensity of the secondary image is very weak (0.2% of the primary image). The prismatic deflection of the secondary image is six times the deflection of the primage image.
弱棱镜的处方可能会诱发单眼复视或双眼复视。单眼重影是由于玻璃 - 空气界面的内部反射所致。二次像的强度非常弱（为一次像的0.2%）。二次像的棱镜偏斜是一次像偏斜的六倍。
