Headlight adjustment screws

The larger screw in the middle of the photo is one of the adjustment screws. If you mistakenly adjusted one of these screws, thinking that it was one of the short retaining screws, then you should probably take a second and align the headlights. This is covered on the same page as the headlight replacement documentation is (Section 4, Pg. 26)
The small screw to the right is one of the short screws that holds the retaining ring in place.