Abstract: The protective glasses with tear-off lenses described consist of an eyeglass body with a fixedly mounted main viewing lens and a frame extending essentially around the entire inner extent of the eyeglass body and at a certain spacing in front of the main viewing lens, with a packet of tear off lenses with gripping tabs inserted behind this frame. The gripping tabs of all of the tear-off lenses are attached on the lower edge of the associated lens and on one side of the glasses (that is, right or left) and specifically, via a stem, the other end is attached foldable by means of a hinge to the associated tear-off lens, whereby, in the case of an inserted packet of tear-off lenses, the individual stems are folded up about their hinges and the stem of one lens is held fast in this folded-up position by means of the lens lying over it, or, in front of it.

Abstract: An adjustable nose piece that is incorporable by sunglasses includes a bridge, nose pads and wires connecting the nose pads to respective rims of the sunglasses. The bridge may be hinged to provided a collapsible sunglasses. The wires include an intermediate portion unattached to the respective rim or nose pad. This free portion may be deformed to provide adjustment of the nose pads. The wires are strong enough for normal wear and use, and sufficiently ductile for adjustment of the nose pads. The wires are susceptible of repeated plastic deformations to allow successive adjustment.

Abstract: Eyeglasses have lenses resting in partial rims and these are held tight by means of a thread which travels in grooves on the lens edges. Adjustment and tightening of the tension of the thread to hold the lens on the eyeglasses is accomplished by a tensioning device carried on the eyeglasses. The tension of the thread is lessened to allow lens replacement or is increased to hold the lens in position with operation of the tensioning device.