- This Yoked Prism Frame with elastic strings & lens sizes: 38mm for Pediatrics.
- Large thumbscrews are on both sides so that each prism can be secured.
Intermediate stereoacuity Polarized that fit nicely between the adult and children polarized viewers. Made of durable plastic for long life.
Stereoacuity depth preception test designed to rapidly test for amblyopia and strabismus in early and non-readers and non-verbal children and adults.
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.