To obtain an objective and quantitative assessment of visual function capacity, we employed the optokinetic reflex (OKR) method, a computer-based means of assessing visual [52 (link)] (OptoMotry© 1.7.7; Cerebral Mechanics). Experiments were carried out as previously described in Gil et al. [53 (link)]. Spatial frequency was increased gradually, and visual acuity was determined when the mouse no longer reacted to the rotating gratings.
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