The Maddox rod test can be used to subjectively detect and measure a latent, manifest, horizontal or vertical strabismus for near and distance.Including Phoria, Tropia, Incyclo and Excyclo [swf:https://www.optometrial.com/manual/maddoxsimulator.swf 480 480] $$150 Details $120 Details $$20 Details $$150 Details