: a surgical operation to reshape the cornea for correction of myopia, farsightedness, or astigmatism in which the surface layer of the cornea is separated to create a hinged flap providing access to the inner cornea where varying amounts of tissue are removed by an excimer laser
Examples of LASIK in a Sentence
Recent Examples on the Web
The new technique could also be more affordable for clinics and regions priced out of LASIK.
—
Meghie Rodrigues, IEEE Spectrum, 2 Sep. 2025
These procedures differ in terms of pain/discomfort (PRK can be quite painful, LASIK is painless) and in terms of recovery time (LASIK is very fast, PRK is much slower).
—Ethan Siegel, Big Think, 19 Aug. 2025
For those who want do do away with corrective lenses, the main option is LASIK (Laser-Assisted In Situ Keratomileusis) surgery, which uses a laser to reshape the cornea by removing microscopic amounts of tissue beneath a thin flap, allowing light to focus properly on the retina.
—New Atlas, 19 Aug. 2025
Postsurgical injury to the flaps created during LASIK may occur.
—Heather Jones Published, Verywell Health, 28 June 2025
There are potential complications of LASIK surgery.
—Carrie Madormo, Health, 30 May 2025
That includes research on ultrafast lasers in the 1990s that eventually resulted in bladeless LASIK eye surgery, or radar technology in the 1960s that revolutionized weather prediction three decades later.
—Aatish Bhatia, New York Times, 22 May 2025
To be clear, there is no clinical evidence linking suicide to LASIK eye surgery.
—Kimberlee Speakman, People.com, 21 May 2025
But unlike scientists, business leaders and managers are reluctant to embrace...
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Since the late 1990s, more than 30 million people have benefited from a corrective eye surgery procedure called LASIK.
—Jerome Barthelemy, Harvard Business Review, 13 May 2025
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Meghie Rodrigues, IEEE Spectrum, 2 Sep. 2025
These procedures differ in terms of pain/discomfort (PRK can be quite painful, LASIK is painless) and in terms of recovery time (LASIK is very fast, PRK is much slower).
—Ethan Siegel, Big Think, 19 Aug. 2025
For those who want do do away with corrective lenses, the main option is LASIK (Laser-Assisted In Situ Keratomileusis) surgery, which uses a laser to reshape the cornea by removing microscopic amounts of tissue beneath a thin flap, allowing light to focus properly on the retina.
—New Atlas, 19 Aug. 2025
Postsurgical injury to the flaps created during LASIK may occur.
—Heather Jones Published, Verywell Health, 28 June 2025
There are potential complications of LASIK surgery.
—Carrie Madormo, Health, 30 May 2025
That includes research on ultrafast lasers in the 1990s that eventually resulted in bladeless LASIK eye surgery, or radar technology in the 1960s that revolutionized weather prediction three decades later.
—Aatish Bhatia, New York Times, 22 May 2025
To be clear, there is no clinical evidence linking suicide to LASIK eye surgery.
—Kimberlee Speakman, People.com, 21 May 2025
But unlike scientists, business leaders and managers are reluctant to embrace...
Post
Buy Copies
Since the late 1990s, more than 30 million people have benefited from a corrective eye surgery procedure called LASIK.
—Jerome Barthelemy, Harvard Business Review, 13 May 2025
Cite this Entry
“LASIK.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/LASIK. Accessed 10 Sep. 2025.
Copy CitationMedical Definition
LASIK
noun
LA·SIK
ˈlā-sik 
: a surgical operation to reshape the cornea for correction of nearsightedness, farsightedness, or astigmatism that involves the use of a microkeratome to separate the surface layer of the cornea creating a hinged flap providing access to the inner cornea where varying degrees of tissue are removed by an excimer laser followed by replacement of the corneal flap
called also laser-assisted in-situ keratomileusis
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