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Combination Horizontal Vertical Prism Bar

Product Number: 11313

Purchase the Combination Horizontal Vertical Prism bar.  This device allows you to measure horizontal and vertical ocular deviation.  Consists of two prism bars (one vertical, one horizontal) held in perfect alignment by a rail/track system.  Comes with a pouch for storage.  Bars can be used together or independently.


Horizontal Sizes:  1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40, and 45 Diopters.

Vertical Sizes:  1, 2, 3, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 25, and 30 Diopters.

Use only mild soap and water to clean prisms!  Alcohol will degrade the quality of the product over time.

Our exclusive manufacturing process greatly reduces optical strain, producing prism bars that virtually eliminate clinical birefringent effects.  The vertical prism bar is calibrated for use in the Prentice position.  The horizontal bar is calibrated for use in the Frontal Plane position.  To obtain accurate results with the combination bar, please ensure that the vertical bar is closest to the patient’s face.