Modified Thorington Card

The Modified Thorington Card is used with a Maddox rod and light source to measure horizontal and vertical phorias for accurate vision assessments. 

• Designed for use with a Maddox rod and illumination to test phorias
• Measures both horizontal and vertical deviations in eye alignment
• Dual-sided for flexible use during vision testing
• Size: 8" L x 5 1/2" W, compact and easy to handle

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