The ornamental design for the eyeglass holder, as shown and described.
FIG. 1 is a front elevational view of an eyeglass holder of the present invention;
FIG. 2 is a right side view of the eyeglass holder of the present invention;
FIG. 3 is a bottom plan view of the eyeglass holder of the present invention;
FIG. 4 is a left side view of the eyeglass holder of the present invention;
FIG. 5 is a rear elevational view of the eyeglass holder of the present invention;
FIG. 6 is a top plan view of the eyeglass holder of the present invention;
FIG. 7 is a perspective view of the eyeglass holder of the present invention, showing the device installed on a visor and a pair of sunglasses supported therewith;
FIG. 8 is a perspective view of the eyeglass holder of the present invention, showing the device installed on a cap;
FIG. 9 is a perspective view of the eyeglass holder of the present invention, showing the device installed on a shirt; and,
FIG. 10 is a perspective view of the eyeglass holder of the present invention, showing the device installed on a backpack.
The broken lines illustrating various articles, such as a visor, cap, T-shirt and backpack, to which the design is applied, form no part of the claim.