Horizontal Prism - Right Eye; Horizontal Prism - Left Eye; Vertical Prism - Right And Left Eye; Xy And Polar Coordinates - Ametek Reichert Phoroptor VRx User Manual

Instructions for Use
Prism Testing
(continued)

Horizontal Prism - Right Eye

• Turn the CONTROL KNOB left to add BO prism in 0.25 D increments.
• Turn the CONTROL KNOB right to add BI prism in 0.25 D increments.

Horizontal Prism - Left Eye

• Turn the CONTROL KNOB left to add BI prism in 0.25 D increments.
• Turn the CONTROL KNOB right to add BO prism in 0.25 D increments.

Vertical Prism - Right and Left Eye

• Turn the CONTROL KNOB right to add BU prism in 0.25 D increments.
• Turn the CONTROL KNOB left to add BD prism in 0.25 D increments.
Note: Press and turn the CONTROL KNOB (at the same time) to add prism in 1.00 D
increments.

XY and Polar Coordinates

1. Touch XY/POLAR to temporarily view the Prism in XY (BI/BO, BU/BD) or Polar Coordinates
(degrees).

Split Prism

1. Touch SPLIT to balance the current Prism power equally in each eye.
80
(continued)
16241-101 Rev. D