soft lens

soft lens

n
(Medicine) a flexible hydrogel lens worn on the surface of the eye to correct defects of vision. Compare hard lens, gas-permeable lens

soft′ lens′


n.
a nonrigid contact lens made of porous plastic, having a high water content that is replenished from eye surface moisture.
[1960–65]
References in periodicals archive ?
"Our soft lens relies on a very similar mechanism -- a simple deformation.
Over the last 20 years, soft lens materials have evolved hugely, and we have to question whether this evidence base is still valid for the lenses that are being fitted today.
Caption: Figure 3 Key attributes that drive daily disposable toric soft lens prescribing.
The ocular surface and eyelids must be carefully assessed prior to lens dispense, since the eyelids and the ocular surface are susceptible to dryness and keratinisation that can dramatically affect the comfort of a soft lens, especially in an ageing cohort.
Hybrid lenses are fitted mainly using a vaulting system where the soft lens skirt helps to lift the RGP lens allowing greater corneal asphericities to be managed effectively with a smaller design RGP lens.
"Our consumer is totally different than the soft lens consumer," says Dan Pennacchia, vice president of sales and marketing for the retail business group of Polymer Technology, which markets Boston brand solutions as well as Bausch & Lomb RGP solutions for parent company Bausch & Lomb.
Among the most popular soft lens care items are one-bottle disinfectant solutions that simplify the maintenance needed for contact lenses.
(10) Studies in the Netherlands and at Pacific University have shown that for a soft lens fit to be successful, the shape of that lens needs to be somewhat 'deep' on the ocular surface.
* Fit first--practical implications of multifocal soft lens design and fit
spent on soft lens care products in 1995, about half went toward disinfecting solutions, $96.7 million went toward daily cleaners and $118.5 million went toward enzymatic cleaners.
As contact lenses have advanced, I would now always fit presbyopic patients with a soft lens. Historically, hard lens wearers have tended to drop out of contact lenses as they become presbyopic because their eyes can be much drier.
There are a number of elements of competence that need to be covered during Visit 3, alongside direct observation of a rigid gas permeable (RGP) aftercare, RGP fitting, soft lens fitting and Goldmann or Perkins contact tonometry.