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Modified Thorington Test Card

Product Number: 15111
Modified Thorington Test Card

Purchase Gulden's Modified Thorington Test Card.  This card is used in conjuction with a Maddox rod and illumination source to measure the extent of horizontal and vertical phorias.

$9.00

Card includes one horizontal row and one vertical row of letters.  When the hole in the card is illuminated, the patient holds a 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: 4.75 by 5.5 inches.