HI56 has been specifically formulated to fulfil modern-day demands for a hydrophobic intraocular lens material that offers a unique combination of high refractive index, tensile strength and flexibility, for small incision and fast unfolding time. HI56 is a fully-moulded semi-finished negative aspheric optic: the ideal solution to low-cost/high-volume hydrophobic IOLs.

The formulation has been created to complement a unique moulding technology. The material is supplied in semi-finished format (two finished optics) by Contateq BV. This simplifies the IOL manufacturer’s production process and avoids the problems associated with cryogenic and room-temperature lathing, reducing machining time and production costs and increasing output.

We also offer a one-side finished version, which helps reduce machining times while giving the laboratory the final choice in optical design. The posterior side optic has a negatively aspheric optic and the anterior lens surface can be lathed into the manufacturer’s own design.

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HI56 technical information

Material characteristics

Water content<1%
Refractive index @ 20°C hydrated1.56
Refractive index @ 35°C hydrated1.555
Tensile strength (MPa)3.8
Modulus (MPa)2.8

Please note: These are typical values. Always check the certificate of conformity supplied with the goods for the actual values of the batch.

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