eyeglass frame for removal and insertion of lenses

An eyeglass frame having lenses and a bottom portion and an upper portion comprising:

• a cam mechanism including a cam lock formed of a pair of cam heads connected to an arm of said cam lock, a hinge pin extending through a hole in a temple portion of said frame, said pair of cam heads being pivotally connected to said hinge pin and to said bottom portion by a pivot point so that when said arm is moved in a first direction said cam heads rotate away from said bottom portion and cause said bottom portion and said upper portion to separate a distance thereby opening said frame for a lens to be removed or replaced;
• and said arm being moved to a second position opposite said first position which cause said cam heads to rotate back into engagement against said bottom portion thereby causing said bottom portion to come together with said upper portion and said frame to close.