The point at which the retinal rods become more sensitive than retinal cones during dark adaptation. It's the change in visual sensitivity that happens in dark adaptation when the retinal rods' sensitivity first surpasses that of the retinal cones.
The point at which the retinal rods become more sensitive than retinal cones during dark adaptation. It's the change in visual sensitivity that happens in dark adaptation when the retinal rods' sensitivity first surpasses that of the retinal cones.
