Horizontal Prism Bar

Horizontal Prism Bar
Product Code: SGR-959-BH
Price: £259.65
Qty:        

This prism bar has the range 1, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 25, 30, 35, 40 and 45D. 

This instrument is ideal for measuring fusional reserves - which may help in the diagnosis of binocular vision problems - as well as for measuring phorias and squints.