Research overview: the visual streak and horizon scanning in cats

Alongside the area centralis, the cat retina has a horizontally elongated band of higher ganglion cell density known as the visual streak. This overview surveys the role of the visual streak, which provides better resolution along the horizontal meridian where prey and movement tend to appear near ground level. Such a streak is common in animals living in open or ground-oriented habitats and supports efficient scanning of the horizon. The survey relates the streak to the cat's predatory ecology and to the topography of retinal ganglion cells described in mapping studies. It discusses how the streak complements the area centralis to shape where the cat sees best. Understanding the visual streak shows that feline acuity is distributed in an ecologically meaningful pattern, concentrating sensitivity along the horizontal zone most relevant to detecting prey and threats moving across the cat's field of view.