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A made-to-order silicone hydrogel lens

Lenses
The development and commercialisation of silicone hydrogel lenses has offered practitioners a tremendous opportunity to fit their patients with lenses that offer substantially greater degrees of oxygen transmissibility to the cornea than those offered by HEMA-based materials.

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To date their clinical performance has been exceptional, and hypoxic complications have been virtually eliminated with this new family of materials.1-11 However, one disadvantage of the currently available materials (Table 1) is that the lenses are only available in a limited number of parameters. While these parameters are adequate for many patients, there are inevitably occasions where patients who would ideally benefit from the oxygen performance of a silicone hydrogel remain unable to be fitted, due to the available lenses either fitting poorly or being unavailable in the required power.

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