This Yoked Prism Frame with elastic strings lens size is 48 mm for adults. Comes with large thumbscrews on each side so that each prism can be secured.
The 360° compass helps to accurately position the prism base.
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This Yoked Prism Frame with elastic strings lens size is 48 mm for adults. Comes with large thumbscrews on each side so that each prism can be secured.
This Yoked Prism Frame with elastic strings lens size is 48 mm for adults. Comes with large thumbscrews on each side so that each prism can be secured.
The 360° compass helps to accurately position the prism base.
Brands | Good Lite |
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Stereoacuity depth preception test designed to rapidly test for amblyopia and strabismus in early and non-readers and non-verbal children and adults.
The small 2″ (5 cm) diameter “smiling face” Fixation paddle was developed based on studies by Robert Fanz. Features include grating on reverse side, small pictures of a bunny and a giraffe for demanding Fixation, and pupil size and corneal diameter measurement on the handle.
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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