In Vivo Efficacy & Pharmacology

The optomotor response (OMR) assay is designed primarily to assess visual acuity and contrast sensitivity, and it cannot reliably measure color vision in preclinical animal models. Color vision discrimination requires separating chromatic cues from luminance cues under strictly isoluminant conditions. Generating true isoluminant stimuli for laboratory animals is experimentally impractical because calibration depends heavily on […]

Optomotor response (OMR) is the only standard rodent behavioral assay capable of distinguishing visual acuity differences between the left and right eyes within the same animal, making it uniquely suited for monocular treatment paradigms with contralateral eye controls. Reliable assessment depends on controlling specific neuroanatomical and operational variables: stimulus rotation direction (clockwise rotation drives left-eye