US D570900 S1
The ornamental design for an eyeglass frame, as shown and described.
FIG. 1 is a top plan view illustrating my design for an eyeglass frame;
FIG. 2 is a front perspective view thereof;
FIG. 3 is a right side view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a bottom view thereof; and,
FIG. 6 is a rear view thereof.
The broken lines depict elements that form no part of the claimed design.