Ball with 60 letters/numbers on the surface. 90mm. (3.6″) diameter; 90 gr. weight; made of polyurethane material.
Each ball includes plastic adhesive hook for hanging up.
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Ball with 60 letters/numbers on the surface. 90mm. (3.6″) diameter; 90 gr. weight; made of polyurethane material.
Each ball includes plastic adhesive hook for hanging up.
Ball with 60 letters/numbers on the surface. 90mm. (3.6″) diameter; 90 gr. weight; made of polyurethane material.
Each ball includes plastic adhesive hook for hanging up.
| Brands | Bernell USA |
|---|

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
Provides a more comfortable and secure strap for the Yoked Prism Framest. Wide Elastic Strap has an eyelet at each end which is easily threaded thru the thumb screw on each side of the Yoked Prism Frame. Velcro strips permit adjustment of the strap to appropriately adjust to the head of your patient.
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