A good binocular screening device. Performed at a distance of 40 cm with a target of 20/30. Most normal patients can cycle between these prims 15/minute. Those with difficulty should be more thoroughly tested.
12D Base-Out and 3D Base-In.
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A good binocular screening device. Performed at a distance of 40 cm with a target of 20/30. Most normal patients can cycle between these prims 15/minute. Those with difficulty should be more thoroughly tested.
12D Base-Out and 3D Base-In.
A good binocular screening device. Performed at a distance of 40 cm with a target of 20/30. Most normal patients can cycle between these prims 15/minute. Those with difficulty should be more thoroughly tested.
12D Base-Out and 3D Base-In.
| Brands | Bernell USA |
|---|
Aperture Rule™ Trainer Kit is a standard instrument in most VT programs. Features progressive fixed demand. Polarized or colored lenses are not required. Helps improve low fusional and accommodative reserves, poor stereopsis, Fixation disparity suppression & tight accommodation-conversion relationship.
The Prism Bar Holder Kit combines a prism bar holder with two horizontal prism bars. The handle holds two horizontal prism bars side by side to get a quick estimation of a prism prescription.
The prism bar set includes the holder along with 2 horizontal prism bars. The prism bar holder can be purchased by itself.

The Combination Horizontal Vertical Prism Bar provides accurate measurement of ocular deviation. This new combination prism bar resolves the problem by having the horizontal prism bar slide up and down in a channel affixed to the vertical prism bar.
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