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2. 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 ...

3. Hydrogen peroxide contact solutions - Wikipedia

   en.wikipedia.org/wiki/Hydrogen_peroxide_contact...

   Lenses soaking in a hydrogen peroxide-based solution. The case is part of a one-step system and includes a catalytic disc to neutralise the peroxide over time. Hydrogen peroxide contact solutions are storage solutions for contact lenses that rely on hydrogen peroxide to clean the contacts and break up proteins and deposits during the ...

4. Refractive error - Wikipedia

   en.wikipedia.org/wiki/Refractive_error

   Usually resolved after the removal of the lenses. Discomfort upon lens removal may be seen. Neovascularization New blood vessels may form in the iris region and the limbus. This may impair vision. Infections Various viral, bacterial, and fungal infection may be seen in the eye post-contact-lens wear, if proper lens hygiene is not maintained.

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. 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.