Product Usage:
Used for testing and training convergence and divergence sensitivity.
Binocular Convergence Function Testing:
The subject should have full correction if needed.
Place the 3Δ base-in prism in front of the subject's eyes and have them fixate on a single line target at 40 cm until the target is fused into one line.
Switch to the 12Δ base-out prism in front of the subject's eyes and start timing. Have the subject fixate on the single line target at 40 cm and attempt fusion. Once the target is fused, switch back to the 3Δ base-in prism and continue until a complete cycle is achieved.
Record the number of cycles completed within one minute.
Product Introduction
Adjustable Pupil Distance
Made with high-definition optical glass lenses.
Prism angle markings are laser engraved.
Adjustable pupil distance range from 42mm to 86mm.
Non-Slip Handle
Dual-color injection molded handle with non-slip design.
Stainless steel arc-shaped spring for adjusting pupil distance.
Ergonomically molded handle curvature.
Parameter:Place of Origin:China
Material:Plastic
Product name:Prism Lens Flipper
Function:Vision Test / Presbyopia Test
Weight:0.3kg
Size:20*10*2cm
