Hybrid contact lens system and method
A hybrid contact lens comprises a central zone comprising a substantially rigid, gas permeable material having a DK of at least 30, a relatively soft peripheral zone and an intermediate zone comprising a film or coating that is created around the central zone, and then cured. The film facilitates chemical bonding between the central zone and the peripheral zone, and also provides a protective barrier to prevent modification of the physical characteristics of the central zone. The film may be created by soaking the central zone in a chemical solution for a predetermined amount of soaking time.
1. A hybrid contact lens, comprising:
a central zone;
a first intermediate zone;
a second intermediate zone; and
a peripheral zone, wherein the first intermediate zone is a film that is created around the central zone and cured.
2. The hybrid contact lens of claim 1 , wherein the second intermediate zone is a film that is created around the first intermediate zone and cured.
3. The hybrid contact lens of claim 1 , wherein the first and second intermediate zones facilitate chemical bonding between the central zone and the peripheral zone.
4. The hybrid contact lens of claim 1 , wherein the first and second intermediate zones prevent modification of the physical characteristics of the central zone.
5. The hybrid contact lens of claim 1 , wherein the central zone comprises a substantially rigid, gas permeable material having a DK of at least 30×10 −11 [cm 2 /sec] [mL O 2 ]/[mL×mm Hg].
6. A hybrid contact lens, comprising
a central zone comprising a substantially rigid, gas permeable material having a Dk of at least 30×10 −11 [cm 2 /sec] [mL O 2 ]/[mL×mm Hg];
a first intermediate zone disposed about a circumference of the central zone and coupled to the central zone;
a second intermediate zone disposed about a circumference of the first intermediate zone and coupled to the first intermediate zone; and
a peripheral zone disposed about a circumference of the second intermediate zone and coupled to the second intermediate zone.
7. The hybrid contact lens of claim 6 , wherein the peripheral zone comprises a substantially flexible hydro-gel material.
8. The hybrid contact lens of claim 6 , wherein each of the first and second intermediate zones comprises a film or coating.
9. A hybrid contact lens, comprising:
a central zone comprising a substantially rigid gas permeable material;
a first intermediate zone disposed about a circumference of the central zone;
a second intermediate zone disposed about the circumference of the central zone; and
a peripheral zone comprising a substantially flexible material, the peripheral zone disposed about the circumference of the central zone,
wherein the first and second intermediate zones are disposed between the central zone and the peripheral zone and couple the peripheral zone to the central zone, and wherein the first intermediate zone and the second intermediate zone comprise different materials.
10. The hybrid contact lens of claim 9 wherein the central zone comprises a substantially rigid, gas permeable material having a Dk of at least 30×10 −11 [cm 2 /sec] [mL O 2 ]/[mL×mm Hg].
11. A method for manufacturing a hybrid contact lens, comprising
providing a central zone;
forming a first intermediate zone about a circumference of the central zone;
forming a second intermediate zone about a circumference of the first intermediate zone; and
forming a peripheral zone about a circumference of the second intermediate zone and coupled to the second intermediate zone, wherein forming the first intermediate zone comprises soaking the central zone in a first chemical solution comprising an oligomer acrylate monomer for a predetermined amount of time.
12. The method of claim 11 , wherein forming the first intermediate zone further comprises applying a catalyst to the first chemical solution.
13. The method of claim 12 , wherein the catalyst is a UV activator.
14. The method of claim 11 , wherein forming the second intermediate zone comprises soaking the central zone in a second chemical solution comprising an oligomer acrylate monomer for a predetermined amount of time.