'''Lasik''' (''[[laser]]-assisted [[in situ]] [[keratomileusis]]''), disebut juga '''operasi laser''', adalah [[Bedah|operasi]] mata yang digunakan untuk mengobati [[rabun jauh]], [[Rabun dekat|dekat]], dan [[astigmatisma]].<ref name="NYT-20180611" /> Lasik menggunakan sinar [[laser]] atau [[mikrokeratoma]] untuk memperbaiki bentuk kornea mata.<ref name="Finn">{{cite news| url=https://www.washingtonpost.com/national/health-science/medical-mystery-preparation-for-surgery-revealed-cause-of-deteriorating-eyesight/2011/11/26/gIQAwVLj4O_story.html | work=The Washington Post | first=Peter | last=Finn | date=20 December 2012 | title=Medical Mystery: Preparation for surgery revealed cause of deteriorating eyesight}}</ref> Untuk penderita yang parah, lasik dapat digunakan untuk penderita rabun yang parah sebagai pengganti [[kacamata]] atau [[lensa kontak]].<ref>{{cite news| url=http://www.irishtimes.com/health-and-beauty/laser-eye-surgery-in-ireland/ | work=The Irish Times | title=Laser Eye Surgery | first=Stephen | last=Maguire}}</ref>
[https://silclasikcenter.com/apa-itu-lasik-mata/ Lasik] sangat mirip dengan metode bedah seperti [https://silclasikcenter.com/apa-itu-transprk-smartsurface/ [keratektomi fororefraktif]] (PRK) dan lasek. Bahkan kemajuannya sendiri telah menggantikan [[keratotomi radial]] dalam operasi gangguan penglihatan. Untuk penderita rabun jauh atau kornea tipis yang tidak dapat diobati dengan lasik atau PRK, lensa intraokuler dapat digunakan.<ref name=lovisolo>{{cite journal | vauthors = Lovisolo CF, Reinstein DZ | title = Phakic intraocular lenses | journal = Survey of Ophthalmology | volume = 50 | issue = 6 | pages = 549–87 | date = Nov–Dec 2005 | pmid = 16263370 | doi = 10.1016/j.survophthal.2005.08.011 }}</ref><ref>{{cite journal | vauthors = Sanders DR, Vukich JA | title = Comparison of implantable contact lens and laser assisted in situ keratomileusis for moderate to high myopia | journal = Cornea | volume = 22 | issue = 4 | pages = 324–31 | date = May 2003 | pmid = 12792475 | doi = 10.1097/00003226-200305000-00009 | s2cid = 21142105 }}</ref> Per 2018, sekitar 9,5 juta masyarakat Amerika Serikat merupakan pasien yang diobati dengan lasik<ref name="NYT-20180611">{{cite news |last=Rabin |first=Roni Caryn |title=Lasik's Risks Are Coming Into Sharper Focus – Some patients who undergo the eye surgery report a variety of side effects. They may persist for years, studies show. |url=https://www.nytimes.com/2018/06/11/well/lasik-complications-vision.html |date=June 11, 2018 |work=[[The New York Times]] |access-date=June 11, 2018 }}</ref><ref>{{cite web|url=http://bmctoday.net/crstodayeurope/2013/02/article.asp?f=ndyag-treatment-of-epithelial-ingrowth|title=Nd:YAG Treatment of Epithelial Ingrowth |first1=Dan |last1=Lindfield |first2=Tom |last2=Poole | name-list-style = vanc |publisher=Cataract and Refractive Surgery Today|access-date=12 September 2013}}</ref> dan, secara global, antara 1991 dan 2016, lebih dari 40 juta prosedur telah dilaksanakan.<ref name="EW-20160401">{{cite web |last=Stodola |first=Ellen |title=LASIK worldwide |url=https://www.eyeworld.org/article-lasik-worldwide |date=April 1, 2016 |work=EyeWorld.org |access-date=June 12, 2018 |archive-date=2018-06-12 |archive-url=https://web.archive.org/web/20180612162458/https://www.eyeworld.org/article-lasik-worldwide |dead-url=yes }}</ref><ref>{{cite web|url=http://www.aao.org/publications/eyenet/200906/feature.cfm?|title=A Look at LASIK Past, Present and Future|publisher=EyeNet Magazine|access-date=12 September 2013|url-status=dead|archive-url=https://web.archive.org/web/20130731030413/http://www.aao.org/publications/eyenet/200906/feature.cfm|archive-date=31 July 2013}}</ref>
