The Adult Thorington Card quickly measures heterophoria using a combination of numbers and letters. The 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 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. With the near adult card, each optotype represents 1 prism diopter, and measures +/- 12 diopters. The card is available in 2 versions:
- Penlight/Transilluminator Attachment (Penlight & Transilluminator Not Included)
- Push Button LED Light
Measurements: 5.75 in x 4.75 in (147mm x 121 mm)