Slant Thorington Card with Transilluminator Adapter

The Slant Thorington Card with Transilluminator Adapter provides a very quick measurement of Heterophoria. It is used with a Transilluminator and a Maddox Rod and they are self-aligning to the light for easy set-up.  Scoring reveals if the patient has normal alignment when fusion is broken or if the patient has abnormal alignment. The card helps diagnose Uncrossed or Crossed Diplopia and RhypoP, LhyperP, RhyperP and LhypoP. Includes a 1 mm hole in center for the fixation light.