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  2. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    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.

  3. Hans-Joachim Haase (optician) - Wikipedia

    en.wikipedia.org/wiki/Hans-Joachim_Haase_(optician)

    Hans-Joachim Haase (1915 – December 20, 2001) was a German clockmaker, optician and inventor, who became known for an apparatus for testing binocular vision and for the MKH method, an alternative method intended to improve binocular vision using corrective lenses. This method, which is controversial, has mainly found application in German ...

  4. Cardiac resynchronization therapy - Wikipedia

    en.wikipedia.org/wiki/Cardiac_resynchronization...

    Cardiac resynchronisation therapy ( CRT or CRT-P) is the insertion of electrodes in the left and right ventricles of the heart, as well as on occasion the right atrium, to treat heart failure by coordinating the function of the left and right ventricles via a pacemaker, a small device inserted into the anterior chest wall. [1]

  5. Strabismus surgery - Wikipedia

    en.wikipedia.org/wiki/Strabismus_surgery

    Strabismus surgery is a one-day procedure that is usually performed under general anesthesia most commonly by either a neuro- or pediatric ophthalmologist. [1] The patient spends only a few hours in the hospital with minimal preoperative preparation. After surgery, the patient should expect soreness and redness but is generally free to return home.

  6. Yang Yongxin - Wikipedia

    en.wikipedia.org/wiki/Yang_Yongxin

    Yang Yongxin ( Chinese: 杨永信; born 21 June 1962) is a highly controversial [3] Chinese clinical psychiatrist who advocated and practiced electroconvulsive therapy (ECT) without anaesthesia or muscle relaxants as a cure for alleged video game and Internet addiction in adolescents. [4] [5] Yang is currently deputy chief of the Fourth ...

  7. Betavoltaic device - Wikipedia

    en.wikipedia.org/wiki/Betavoltaic_device

    Betavoltaic device. A betavoltaic device ( betavoltaic cell or betavoltaic battery) is a type of nuclear battery which generates electric current from beta particles ( electrons) emitted from a radioactive source, using semiconductor junctions. A common source used is the hydrogen isotope tritium. Unlike most nuclear power sources which use ...

  8. One Piece - Wikipedia

    en.wikipedia.org/wiki/One_Piece

    One Piece (stylized in all caps) is a Japanese manga series written and illustrated by Eiichiro Oda.It has been serialized in Shueisha's shōnen manga magazine Weekly Shōnen Jump since July 1997, with its individual chapters compiled in 108 tankōbon volumes as of March 2024.

  9. Kamala Harris - Wikipedia

    en.wikipedia.org/wiki/Kamala_Harris

    Kamala Harris speaks on the Americans with Disabilities Act. Recorded July 26, 2021. Kamala Devi Harris [a] ( / ˈkɑːmələ ˈdeɪvi / ⓘ KAH-mə-lə DAY-vee; [2] [3] born October 20, 1964) is an American politician and attorney who is the 49th and current vice president of the United States under President Joe Biden.