Description:-

Fusional reserves - which can help in your diagnosis of binocular vision problems.

Phorias & squints - which can improve the accuracy of your estimations & monitoring. 

Box comprising a horizontal and a vertical prism bar.

Specification:- 

Vertical Prism Bar:- With 1/2/3/4/5/6/8/10/12/14/16/18/20/25D.

Horizontal Prism Bar:- With 1/2/4/6/8/10/12/14/16/18/20/25/30/35/40D.