• 4 or 12 Books
• 12 pages
• Size: 8-1/2″ x 11″
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• 4 or 12 Books
• 12 pages
• Size: 8-1/2″ x 11″
| 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.
These vergence prisms quickly screen for binocular vision. Use these to get the patient to cycle between the two prisms up to 15 cycles per minute. Use at 16″ (40 cm) with a 20/30 near point line. Prisms are 12D base-out and 3D base-in and 1.5″ high (38mm).
The Vergence Facility Prism is available in :
Mounted to a stainless steel holder

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