When the hole in the card is illuminated, the patient holds the Maddox rod over their eye and reports the location of the line on the card. In this way, the extent of the phoria can be measured. Dimensions: 10.5 x 8.5 inches. Maddox rod and 40cm distance string are included.
Purchase Gulden’s Eye Alignment Near Card. This card is a test that measures vertical and horizontal eye muscle balance at near. Comes with a Maddox rod and 40cm (16 inch) distance string.