CALIBRATION cm inches Measure this line

MONITOR DISTANCE meters feet

CHART TYPE [F1] Snellen [F2] Duochrome [F3] Astigmatism [F4] Assocphoria [F5] Contrast [F6] Diagrams [F7] Shapes [F8] Text [F9] Greycards [F10]Gradients

OPTOTYPE [l] Letter [h] HTOV [k] PICS [n] Numbers [t] Tumbling E's [c] Landolt C [e] Lea [-] H [[] V [:] Dot [+] Cross []] maddox_h [#] maddox_v [d] Dots [r] Rings Diagram1 Diagram2 Diagram3 Diagram4 Diagram5 Diagram6 Diagram7 Diagram8 Diagram9 Diagram10 Diagram11 Diagram12 Diagram13 Text1 Text2 Text3 Text4 Text5

VIEWING PREFERENCE [1] Single [2] Line [4] Multiple [3] Three Line

DISPLAY [m] Mirror [a] Animate [b] Crowd Bars