The ornamental design for a lenscover for convertingeyeglasses to sunglasses, as shown and described.
FIG. 1 is a front, top and side perspective view of the lens cover for
converting eyeglasses to sunglasses embodying the design of the present
invention;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof; and,
FIG. 5 is a front elevational view thereof, the rear opposite being a
mirror image of the front shown in FIG. 5.