Packaging for disposable soft contact lenses
The present disclosure provides a contact lens package containing a contact lens in a compressed state. In one exemplary embodiment, the overall internal depth of the package is less than the natural sagittal depth of the contact lens. Different single-use contact lens package shapes and configurations may be used. In some embodiments, a spring disc is included in the packages to help present the contact lens to the user when the package is opened. The contact lens packages may be adhered or clipped to a card or other carrier sheet, and may be housed in a number of different secondary packages.
1. A contact lens package comprising:
a contact lens stored in the package;
a spring disc stored in the package; and,
a first sheet sealing the package to hold the lens and the spring disc in the package such that the spring disc and lens are held in a compressed state and only return to their natural equilibrated state when the package is opened by separation of the first sheet from the remainder of the package.
2. The contact lens package of claim 1 , wherein:
the package comprises a second sheet and a peel seal encircling the spring disc and the lens and sealing the second sheet and the first sheet together such that the first sheet can be peeled from the second sheet; and,
the spring disc is placed on the second sheet and the lens is disposed between the spring disc and the first sheet.
3. The contact lens package of claim 2 , wherein at least one of the second sheet and first sheet is a laminate.
4. The contact lens package of claim 2 , wherein at least one of the second sheet and first sheet is made from at least one material selected from the group of polyethylene terephthalate, polypropylene, and aluminum.
5. The contact lens package of claim 2 , wherein the spring disc is adhered to the second sheet.
6. The contact lens package of claim 1 , wherein the package contains a hydration solution to keep the lens hydrated.
7. The contact lens package of claim 1 , wherein the spring disc has an annular portion and at least one spring arm extending radially inwardly from the annular portion and held in a depressed state in the package, the spring arm returning to its natural raised state when the sealed package is opened to raise the lens.
8. The contact lens package of claim 1 , wherein the spring disc is made from at least one material selected from the group of polyolefin, silicone, polyamide and polyurethane.