Intraocular lens materials suitable for insertion through a small bore cartridge
A polymer material useful for manufacturing an intraocular lens (IOL) suitable for insertion through an IOL inserter barrel having an inner diameter of less than 3 mm is provided. Specifically, acrylic-silicone hybrids having a tensile strength of approximately 100 psi to 400 psi and a percent elongation at break of between 50% and 400% are disclosed.
1. An intraocular lens copolymer material comprising from approximately 45 wt % to approximately 55 wt % phenoxyethyl acrylate, from approximately 15 wt % to approximately 25 wt % ethyl acrylate, from approximately 15 wt % to approximately 25 wt % ethyl methacrylate, from approximately 5 wt % to approximately 15 wt % divinyl silicone, from approximately 0.2 wt % to approximately 0.7 wt % ethyleneglycol dimethacrylate, and from approximately 0.2 wt % to approximately 0.7 wt % tetraethyleneglycol dimethacrylate.
2. The intraocular lens material according to claim 1 wherein said IOL material further comprises a polymer additive selected from the group consisting of UV light absorbers, blue light blockers, lubricious surface coatings, anti-thrombogenic compositions and cell growth agonists or antagonists.
3. An intraocular lens made from an intraocular lens material of claim 1 said intraocular lens material is suitable for insertion through an IOL insertion barrel having a diameter of 2 mm or less.
4. An intraocular lens material comprising approximately 49 wt % phenoxyethyl acrylate, approximately 19 wt % ethyl acrylate, approximately 21 wt % ethyl methacrylate, approximately 9 wt % divinyl silicone, approximately 0.4 wt % ethyleneglycol dimethacrylate, and approximately 0.3 wt % tetraethyleneglycol dimethacrylate.
5. The intraocular lens materials according to claim 4 wherein said IOL material further comprises a polymer additive selected from the group consisting of UV light absorbers, blue light blockers, lubricious surface coatings, anti-thrombogenic compositions and cell growth agonists or antagonists.
6. An intraocular lens made from an intraocular lens material of claim 4 said intraocular lens material is suitable for insertion through an IOL insertion barrel having a diameter of 2 mm or less.
7. The intraocular lens material as in one of claims 1 - 6 in which said intraocular lens material has a tensile strength of between approximately 100 psi and 400 psi and a percent elongation of 50% to 400% at break point.