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2. Polyhydroxyethylmethacrylate - Wikipedia

   en.wikipedia.org/wiki/Polyhydroxyethylmethacrylate

   In 1959, this material was first used as an optical implant. Wichterle thought pHEMA might be a suitable material for a contact lens and gained his first patent for soft contact lenses. [2] By late 1961, he succeeded in producing the first four pHEMA hydrogel contact lenses on a home-made apparatus. Copolymers of pHEMA are still widely used ...

3. Orthokeratology - Wikipedia

   en.wikipedia.org/wiki/Orthokeratology

   Orthokeratology lens. Orthokeratology, also referred to as Night lenses, Ortho-K, OK, Overnight Vision Correction, Corneal Refractive Therapy (CRT), Accelerated Orthokeretology, Cornea Corrective Contacts, Eccentricity Zero Molding, and Gentle Vision Shaping System (GVSS), is the use of gas-permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as myopia ...

4. Johnson & Johnson Vision - Wikipedia

   en.wikipedia.org/wiki/Johnson_&_Johnson_Vision

   In May 2007, the Centers for Disease Control and Prevention linked AMO MoisturePlus eye solution to Acanthamoeba keratitis infections. [17] AMO announced a recall on Complete MoisturePlus contact lens solution on May 28, 2007. [18] The solution has been linked to cases of an eye infection (keratitis) caused by an organism of the genus ...

5. 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.

6. Eye Vision Correction: Permanent Contact Lens Is Lasik ... - AOL

   www.aol.com/eye-vision-correction-permanent...

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7. Refractive surgery - Wikipedia

   en.wikipedia.org/wiki/Refractive_surgery

   Phakic intraocular lens implantation inside the eye can also be used to change refractive errors. The newest type of intervention is a type of PIOL called the implantable collamer lens which uses a biocompatible flexible lens which can be inserted in the eye via a 3 mm incision. The ICL is used to correct myopia ranging from −0.5 to −18 ...