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 delivery package, comprising:
a sealed envelope defining a volume;
at least one independently sealed contact lens package containing a contact lens the independently sealed contact lens package being disposed within the sealed envelope and occupying a first portion of the volume; and
a second portion of the volume being filled with an inert gas.
2. The contact lens delivery package of claim 1 , wherein the inert gas comprises nitrogen.
3. The contact lens delivery package of claim 1 , wherein the inert gas displaces air such that the shelf life of the contact lens is extended within the independently sealed contact lens package.
4. The contact lens delivery package of claim 1 , wherein the sealed envelope is coated with aluminum.
5. The contact lens delivery package of claim 1 , wherein the independently sealed contact lens package is sealed within the sealed envelope.
6. A contact lens package assembly, comprising:
a sealable contact lens package;
at least one contact lens sealed within the sealable contact lens package; and
a sealable envelope;
wherein the sealable contact lens package is sealed within the sealable envelope, the sealable envelope including an inert gas therein;
wherein the seal of the sealable contact lens package and the seal of the sealable envelope comprise different seals.
7. The contact lens package assembly of claim 6 , wherein the sealable envelope is configured to retain a plurality of primary lens packages.
8. The contact lens package assembly, of claim 6 , wherein the at least one inert gas comprises nitrogen.
9. The contact lens package assembly of claim 6 , wherein the sealable envelope comprises an aluminum layer.
10. The contact lens delivery package of claim 6 , wherein the inert gas is configured to displace air such that the shelf life of the at least one contact lens is extended within the sealable contact lens package.
11. The contact lens delivery package of claim 10 , wherein the contact lens package comprises two sheets of material sealed together.
12. The contact lens delivery package of claim 11 , further comprising a first seal surrounding the contact lens, and a second seal around a perimeter of the package, wherein the first seal is stronger than the second seal.
13. The contact lens delivery package of claim 10 , wherein the contact lens package comprises a first space containing a hydration medium and a second space containing the hydration medium, wherein the first space and the second space are separated by a seam.
14. A method for manufacturing a contact lens package, comprising:
sealing a contact lens within a contact lens package; and
sealing the contact lens package within an envelope, wherein the envelope is configured to provide an inert environment for the contact lens package by sealing a volume of inert gas within the envelope with the contact lens package;
wherein the sealing of the contact lens package and the sealing of the envelope comprise different sealing processes.
15. The method of claim 14 , wherein the inert gas comprises nitrogen.
16. The method of claim 14 , wherein the inert gas displaces air such that the shelf life of the contact lens is extended within the contact lens package.