One of the behavioral Visual Acuity analysis testperformed are the optokinetic response (OKR) test and OMR. From the analysis of this test, visual acuity and contrast sensitivity could be deduced. For the test, zebrafish larvae are immobilized in petri dishes above an infrared light. The light emitted rotating grating patterns around the larvae, and the patterns elicited eye movement, which was recorded in real time by an infrared-sensitive Camera.