Eye Animation is a Blender add-on by Affe_mit_Waffe for keyframing eye movement and blinking on rigged characters. It lives in the Dope Sheet, in the panels revealed when you press the N key, and works with eye bones named R_Eye and L_Eye plus shape keys named Blink_R and Blink_L.
Setup happens in Pose Mode: move the eye bones to a desired position and click the eyedropper icon to save it, repeating for each direction you want, such as Left. Once positions are stored, you set timing by choosing Fast, Medium, or Slow, or by entering frame numbers manually. From the Dope Sheet you then pick a frame and apply the movement you want.
A separate Blinking tab handles blink duration in frames and applies the motion with a Blink button. The add-on also includes winking and squinting animations. Version 2.0.0 is compatible with Blender 5.0.1 and newer and is released under the GNU General Public License v3.0 or later.