enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Toric lens - Wikipedia

   en.wikipedia.org/wiki/Toric_lens

   Toric lens surface as "cap" (top-right) from a torus (here with R = 1.2 r ). A toric lens is a lens with different optical power and focal length in two orientations perpendicular to each other. One of the lens surfaces is shaped like a "cap" from a torus (see figure at right), and the other one is usually spherical.

3. List of soft contact lens materials - Wikipedia

   en.wikipedia.org/wiki/List_of_soft_contact_lens...

   Cooper Clear, Cooper Toric, Preference, Preference Toric, Vantage, Vantage Accents, Vantage Thin, Vantage Thin Accents Crofilcon: 38: 13: CSI, CSI Toric Helfilcon A/B: 45: 12: Continental Toric, Flexlens, Flexlens Toric, Flexlens Aphakic, Optima Toric, All X-Cel lenses Mafilcon: 33: 4: Menicon Polymacon: 38.6: 8.5-24.3

4. Intraocular lens - Wikipedia

   en.wikipedia.org/wiki/Intraocular_lens

   PIOLs are sometimes referred to as an 'implantable contact lenses' (ICLs). As with other IOLs, PIOLs can be either spheric or toric. Toric PIOLs have to be aligned with the meridian of astigmatism; toric IOL misalignment or rotation can lead to residual or even greater astigmatism postoperatively.

5. Astigmatism - Wikipedia

   en.wikipedia.org/wiki/Astigmatism

   Once only available in a rigid, gas-permeable form, toric lenses are now also available as soft lenses. In older people, astigmatism can also be corrected during cataract surgery. This can either be done by inserting a toric intraocular lens or by performing special incisions (limbal relaxing incisions). Toric intraocular lenses probably ...

6. Corrective lens - Wikipedia

   en.wikipedia.org/wiki/Corrective_lens

   A pair of contact lenses, positioned with the concave side facing upward. A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia.

7. Contact lens - Wikipedia

   en.wikipedia.org/wiki/Contact_lens

   A pair of contact lenses, positioned with the concave side facing upward. Putting contacts in and taking them out. One-day disposable contact lenses with blue handling tint in blister-pack packaging. Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used ...