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  2. List of soft contact lens materials - Wikipedia

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

    The first contact lenses were made of glass, in 1888. Initially the glass was blown but soon lenses were made by being ground to shape. For the first fifty years, glass was the only material used. The lenses were thin, yet reports of injury were rare. In 1938 perspex (polymethylmethacrylate, or PMMA) began to replace glass in contact lens ...

  3. List of executive orders by Bongbong Marcos - Wikipedia

    en.wikipedia.org/wiki/List_of_executive_orders...

    Solid North. v. t. e. Listed below are executive orders signed by Philippine President Bongbong Marcos. Executive Order (s) (EO) are issued by the President to help officials and agencies in the operations management of the Executive Branch of the Philippine Government. He signed a total of 67 Executive Orders to date.

  4. Hoya Corporation - Wikipedia

    en.wikipedia.org/wiki/Hoya_Corporation

    Hoya Corporation (Hoya株式会社, Hōya Kabushiki-gaisha) is a Japanese company manufacturing optical products such as photomasks, photomask blanks and hard disk drive platters, contact lenses and eyeglass lenses for the health-care market, [4] medical photonics, [5] lasers, photographic filters, medical flexible endoscopy equipment, and software.

  5. Ordinance Power of the President of the Philippines - Wikipedia

    en.wikipedia.org/wiki/Ordinance_Power_of_the...

    Executive orders (Filipino: Kautusang tagapagpaganap), [2] according to Book III, Title I, Chapter II, Section 2 of Administrative Code of 1987, refer to the "Acts of the President providing for rules of a general or permanent character in implementation or execution of constitutional or statutory powers.

  6. Food and Drug Administration (Philippines) - Wikipedia

    en.wikipedia.org/wiki/Food_and_Drug...

    The Food and Drug Administration (FDA) of the Philippines, formerly the Bureau of Food and Drugs (BFAD / ˈ b iː f æ d /; 1982–2009), is a health regulatory agency under the Department of Health created on 1963 by Republic Act No. 3720, amended on 1987 by Executive Order 175 otherwise known as the "Food, Drugs and Devices, and Cosmetics Act", and subsequently reorganized by Republic Act No ...

  7. 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 ...

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