silicone hydrogel contact lens


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silicone hydrogel contact lens

Abbreviation: SH lens
A soft, extended-wear contact lens designed to improve the delivery of oxygen to the corneal epithelium. Depending on their design specifications, such lenses may be worn 6 to 30 days and nights consecutively.
See also: lens
References in periodicals archive ?
The custom soft, silicone hydrogel contact lens family C-Vue is now available as a monthly modality and will be another hot topic on the stand.
Additionally, on the contact lens side, UltraVision, on stands 28/29/31/32, will introduce Litewave, an aspheric toric freeform silicone hydrogel contact lens manufactured in a new material exclusive to the company and Scotlens, on stand 23, will have details of its new EasyScleral and CorneoScleral lenses which allow practitioners to easily fit RGP lenses up to 18mm.
However, it is still wise to keep track of this, as a reduction in wearing time for a silicone hydrogel contact lens wearer is a great Indicator that something is going wrong.