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 stack of contact lens packages, each contact lens package manufactured with a contact lens hermetically sealed therein, wherein each of the contact lens packages is defined by a concave cup-shaped portion which accommodates the contact lens and an aqueous liquid, and a peripheral portion;
the packages being stacked such that the concave cup-shaped portion of a first package is partially accommodated within the concave cup-shaped portion of an adjacent package, thereby reducing dead volume in the stack.
2. The stack of contact lens packages of claim 1 , wherein each of the contact lens packages comprises two curved sheets of material sealed together.
3. The stack of contact lens packages of claim 1 , wherein each of the contact lens packages comprises at least one flexible sheet.
4. The stack of contact lens packages of claim 2 , wherein the two curved sheets pull apart to release the contact lens.
5. The stack of contact lens packages of claim 1 , wherein the contact lens is compressed within each of the contact lens packages.
6. The stack of contact lens packages of claim 2 , wherein the sheets are sealed in an area surrounding the contact lens.
7. The stack of contact lens packages of claim 6 , wherein said sheets are not sealed on at least one corner of the contact lens package.
8. The stack of contact lens packages of claim 2 , wherein the sheets each comprise multi-layer laminates.
9. The stack of contact lens packages of claim 2 , wherein a first of the two curved sheets of material tracks an upper surface of the contact lens and a second of the two curved sheets of material tracks a lower surface of the contact lens.
10. The stack of contact lens packages of claim 2 , wherein at least one of the sheets is embossed.
11. The stack of contact lens packages of claim 1 , wherein said contact lens package comprises two curved sheets of polypropylene.
12. The stack of contact lens packages of claim 1 , wherein the concave cup-shaped portion of the first package comprises a first curved packaging surface and a second curved packaging surface;
wherein the contact lens and the aqueous liquid are disposed between the first curved packaging surface and the second curved packaging surface.
13. A stack of contact lens packages, each contact lens package manufactured with a contact lens hermetically sealed therein, wherein each of the contact lens packages is defined by a concave cup-shaped portion which accommodates the contact lens and an aqueous liquid, and a peripheral portion;
the packages being stacked such that the concave cup-shaped portion of a first package is partially accommodated within the concave cup-shaped portion of an adjacent package, thereby reducing dead volume in the stack;
wherein each of the contact lens packages comprises two curved sheets of material sealed together; and
wherein the sheets are sealed in an area surrounding the contact lens.
14. The stack of contact lens packages of claim 13 , wherein the contact lens is compressed within each of the contact lens packages.
15. The stack of contact lens packages of claim 13 , wherein the concave cup-shaped portion of the first package comprises a first curved packaging surface and a second curved packaging surface;
wherein the contact lens and the aqueous liquid are disposed between the first curved packaging surface and the second curved packaging surface.
16. The stack of contact lens packages of claim 13 , wherein a first of the two curved sheets of material tracks an upper surface of the contact lens and a second of the two curved sheets of material tracks a lower surface of the contact lens.
17. A stack of contact lens packages, each contact lens package manufactured with a contact lens hermetically sealed therein, wherein each of the contact lens packages is defined by a concave cup-shaped portion which accommodates the contact lens and an aqueous liquid, and a peripheral portion;
the packages being stacked such that the concave cup-shaped portion of a first package is partially accommodated within the concave cup-shaped portion of an adjacent package, thereby reducing dead volume in the stack;
wherein each of the contact lens packages comprises two curved sheets of material sealed together in the peripheral portion surrounding the contact lens;
wherein the concave cup-shaped portion of the first package comprises a first curved packaging surface and a second curved packaging surface;
wherein the contact lens and the aqueous liquid are disposed between the first curved packaging surface and the second curved packaging surface; and
wherein a first of the two curved sheets of material tracks an upper surface of the contact lens and a second of the two curved sheets of material tracks a lower surface of the contact lens.