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2. List of soft contact lens materials - Wikipedia

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

   PureVision, PureVision Toric, PureVision Multi-Focal, PureVision2, PureVision2 for Astigmatism, PureVision2 Multi-Focal for Presbyopia Delefilcon A: 33-99 (water gradient) 156 [22] 0.7: 0.09: Dailies Total1, Dailies Total1 Multifocal, DailiesTotal1 for Astigmatism Narafilcon B: 1: 48: 55: 1-Day Acuvue TruEye (old) Narafilcon A: 46: 118: 0.66: 0 ...

3. List of instruments used in ophthalmology - Wikipedia

   en.wikipedia.org/wiki/List_of_instruments_used...

   Toric Marker: to mark 0 to 180 degree reference mark for Toric IOL implant Pre-chopper: to chop lens into pieces before implantation new lens and reduce phaco time Spectacles (glasses) to correct refractive errors of the eye; not invasive Contact lenses: to correct refractive errors of the eye; a little invasive Phoropter: used in refraction ...

4. 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 .

5. Contact lens - Wikipedia

   en.wikipedia.org/wiki/Contact_lens

   Artist's impression of Leonardo's method for neutralizing the refractive power of the cornea. Leonardo da Vinci is frequently credited with introducing the idea of contact lenses in his 1508 Codex of the eye, Manual D, [9] wherein he described a method of directly altering corneal power by either submerging the head in a bowl of water or wearing a water-filled glass hemisphere over the eye.

6. Astigmatism - Wikipedia

   en.wikipedia.org/wiki/Astigmatism

   In with-the-rule astigmatism, the eye has too much "plus" cylinder in the horizontal axis relative to the vertical axis (i.e., the eye is too "steep" along the vertical meridian relative to the horizontal meridian). Vertical beams of light focus in front to horizontal beams of light, in the eye.

7. When It Comes to Weight Loss, These 2 Nutrients Can Help ...

   www.aol.com/lifestyle/comes-weight-loss-2...

   The study asked 22 people to attend 19 dietary educational sessions over a year, plus complete some educational homework. The researchers then tracked changes in the participant’s weight, diet ...