The Pediatric Thorington Card quickly measures heterophoria using symbols. This near card is used with a Maddox Rod. Scoring reveals if the patient has normal alignment when fusion is broken or if the patient has an abnormal alignment.

The card helps diagnose Uncrossed or Crossed Diplopia and RhypoP, LhyperP, RhyperP, and LhypoP. A 1 mm hole is included in the center for the Fixation light. With the near-adult card, each optotype represents 1 prism diopter, and measures +/- 12 diopters. Available in 2 versions: Penlights/Transilluminator attachment or Push Button LED Light.

Dimensions: 5.75" x 4.75" (14.6 x 12.1 cm).