Kullan\u0131m\u0131 gittik\u00e7e yayg\u0131nla\u015fan ve g\u00f6z\u00fcn saydam tabakas\u0131 kornea \u00fczerine konan, k\u00fc\u00e7\u00fck plastik merceklere kontakt lens ad\u0131 verilmektedir. G\u00fcn\u00fcm\u00fczde g\u00f6z\u00fc bozuk olan bir \u00e7ok insan g\u00f6zl\u00fck yerine lensi tercih etmektedir. Kontakt lens \u0130lk defa\u00a01508 y\u0131l\u0131nda Leonardo da Vinci taraf\u0131ndan d\u00fc\u015f\u00fcn\u00fclm\u00fc\u015ft\u00fcr. G\u00f6z ile temas halinde yerle\u015ftirilen, i\u00e7i su dolu lens kullanan temel optik prensipleri \u00e7e\u015fitli \u00e7izimler ve a\u00e7\u0131klamalarla anlatan “Codex of the Eye” ad\u0131n\u0131 verdi\u011fi belgeyi haz\u0131rlam\u0131\u015ft\u0131r.\u00a0Kontakt lens g\u00fcn\u00fcm\u00fczde \u00e7ok geli\u015fmi\u015ftir.<\/p>\n
Leonardo da Vinci<\/strong>”den 100 y\u0131l sonra Rene Descartes g\u00f6rme sorunlar\u0131n\u0131 d\u00fczeltmek i\u00e7in kornea lens fikrini geli\u015ftirdi. yakla\u015f\u0131k 170 y\u0131l sonra Thomas Young, Descartes’in fikrini geli\u015ftirerek ilk lens olarak kabul edilen lensi yapmay\u0131 ba\u015farm\u0131\u015ft\u0131r. Fakat o zamana kadar yap\u0131lan yada geli\u015ftirilen lensler hen\u00fcz g\u00f6ze tak\u0131lam\u0131yordu.<\/p>\n Almanya’da 1887 y\u0131l\u0131nda bir cam ustas\u0131 olan August Muller<\/strong>, g\u00f6ze tak\u0131labilen ve g\u00f6z taraf\u0131ndan kabul edilen kontakt lensi geli\u015ftirdi\u011fini duyurdu. Kendisine t\u0131p bilimine yapt\u0131\u011f\u0131 bu bulu\u015fu i\u00e7in fahri doktor unvan\u0131 verildi. Bundan sonra, b\u00fct\u00fcn d\u00fcnyada lens ile ilgili tasar\u0131mlar ve geli\u015fmeler h\u0131zland\u0131.<\/p>\n Amerika’da 1948 y\u0131l\u0131nda, kornean\u0131n sadece bir b\u00f6l\u00fcm\u00fcn\u00fc kapsayan, plastikten yap\u0131lan sert kontakt lensler, Kevin Tuohy taraf\u0131ndan imal edildi. Bu devrimci ad\u0131m ile kontakt lenslerde bir\u00e7ok de\u011fi\u015fiklik ger\u00e7ekle\u015fti.\u00a0Sohnges (Almanya), Neill (ABD) ve Dickinson (\u0130ngiltere) mikro-korneal lenslerin \u00f6nc\u00fcleri oldular<\/p>\n Lens \u00fcretimi teknoloji ile birlikte b\u00fcy\u00fcmeye devam etti ve 1960’larda Otto Wichterle ve Drahoslav Lim plastik, su emici, yumu\u015fak kontakt lens’i \u00fcrettiler. Bu geli\u015fme g\u00fcn\u00fcm\u00fczde \u00fcretilen kontakt lenslere ilham kayna\u011f\u0131 olmu\u015ftur.<\/p>\n 1970’lere kadar miyop ve hipermetroplar i\u00e7in lensler \u00fcretilmekteydi. 1978 y\u0131l\u0131nda Amerika’da astigmat\u0131 olan hastalar i\u00e7in ilk torik kontakt lensler \u00fcretildi.<\/p>\n 1975 y\u0131l\u0131nda kal\u0131c\u0131 lensler \u00fcretildi. 1980’lerde yumu\u015fak ve renkli lensler kullan\u0131labilir hale geldi. S\u0131ras\u0131yla GGS lensler ve Bifokal lensler\u00a0 piyasaya \u00e7\u0131kt\u0131. 1990′ larda ilk \u00e7ok ama\u00e7l\u0131 lens bak\u0131m sol\u00fcsyonu kullan\u0131labilir hale geldi.<\/p>\n Sert, yumu\u015fak ve yar\u0131 yumu\u015fak lensler olmak \u00fczere \u00fc\u00e7 \u00e7e\u015fittir. Sert lensler polimetilmetakrilat, yumu\u015fak lensler Hema (hidroksimelitmetakrilat) ve Hydron\u2019dan, yar\u0131 yumu\u015fak lensler ise Cap (sel\u00fcloz asetat b\u00fctirat)tan yap\u0131lmaktad\u0131rlar. Ayr\u0131ca silikondan yap\u0131lan lensler de mevcuttur.<\/p>\n Lenslerin birbirine g\u00f6re ve g\u00f6zl\u00fc\u011fe g\u00f6re \u00fcst\u00fcnl\u00fckleri ve k\u00f6t\u00fc taraflar\u0131 vard\u0131r. Lens ile g\u00f6zl\u00fc\u011fe g\u00f6re daha net g\u00f6r\u00fcnt\u00fc elde edilir. G\u00f6zl\u00fc\u011f\u00fcn \u015fakak ve burun \u00fczerindeki a\u011f\u0131rl\u0131k ve bas\u0131nc\u0131, kontakt lenste yoktur.G\u00f6rme alan\u0131 daha geni\u015ftir. K\u00f6t\u00fc taraflar\u0131 ise pahal\u0131 olmalar\u0131, dikkatli bak\u0131m gerektirmeleri, al\u0131\u015fana kadar baz\u0131 s\u0131k\u0131nt\u0131lar\u0131n\u0131n olmas\u0131 ve en \u00f6nemlisi kornean\u0131n oksijen almas\u0131n\u0131 g\u00fc\u00e7le\u015ftirdiklerinden g\u00fcn sonunda \u00e7\u0131kart\u0131lmas\u0131 gerekmektedir. Son zamanlarda, devaml\u0131 tak\u0131labilen yumu\u015fak lensler de \u00fcretilmektedir.<\/p>\n","protected":false},"excerpt":{"rendered":" Kullan\u0131m\u0131 gittik\u00e7e yayg\u0131nla\u015fan ve g\u00f6z\u00fcn saydam tabakas\u0131 kornea \u00fczerine konan, k\u00fc\u00e7\u00fck plastik merceklere kontakt lens ad\u0131 verilmektedir. G\u00fcn\u00fcm\u00fczde g\u00f6z\u00fc bozuk olan bir \u00e7ok insan g\u00f6zl\u00fck yerine lensi tercih etmektedir. Kontakt…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[1497,937,1500,1499,1496,1498],"class_list":["post-2864","post","type-post","status-publish","format-standard","hentry","category-saglik","tag-august-muller","tag-descartes","tag-kontakt-lens","tag-lens","tag-leonardo-da-vinci","tag-thomas-young"],"_links":{"self":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2864"}],"collection":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2864"}],"version-history":[{"count":4,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2864\/revisions"}],"predecessor-version":[{"id":7563,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=\/wp\/v2\/posts\/2864\/revisions\/7563"}],"wp:attachment":[{"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ilkkimbuldu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}