Which of the following rays are used in doing LASIK (Laser - Assisted in Situ keratomileusis) eye surgery?

Explanation:

​LASIK:

• LASIK (Laser-Assisted in Situ Keratomileusis) is a type of refractive surgery that uses a laser to correct vision problems.
• During the LASIK procedure, a surgeon uses a laser to reshape the cornea, which is the clear front part of the eye.
• The laser used in LASIK surgery is an ultraviolet excimer laser.
• Therefore, ultraviolet excimer laser rays are used in doing LASIK eye surgery.

So, the Ultraviolet rays are used in doing LASIK.

The correct answer is option (1).