Please read description carefully.
Do not base your order on the picture presented.
Quick screen for binocular vision.
Use to get the patient to cycle between the two prisms up to 15 cycles per minute.
Use at 16 inches (40 cm) with 20/30 near point line.
Prisms are 12D base out and 3D base in and 1.5 inch high (38 mm).
Comes either mounted on a stainless stick holder or loose.
Medex SKU: GL-477701