After awhile, you get the feeling that either you or the light is in motion. To prevent this from happening, keep your eyes moving. Don't stare at a single light too long. A good technique is to look 10 degrees above, below, or to either side of the object. Distant vision is required for VFR operations including take-off, attitude control, navigation, and landing.
Distant vision is especially important in avoiding mid-air collisions.
Near vision is required for checking charts, maps, frequency settings, etc. Near and intermediate vision are required for checking aircraft instruments. Learn about your own visual strengths and weaknesses. Changes in vision may occur imperceptibly or very rapidly. Periodically self-check your range of visual acuity by trying to see details at near, intermediate, and distant points.