Which refractive technique uses a microkeratome?

Which refractive technique uses a microkeratome?

• A. Photorefractive keratectomy
• B. Laser in situ keratomileusis
• C. Astigmatic keratotomy
• D. PKP

Answer: (B)

The technique that employs a microkeratome is laser in situ keratomileusis, commonly known as LASIK. This surgical procedure involves creating a thin flap in the cornea using the microkeratome, a precise surgical instrument. By lifting this flap, the surgeon can then apply laser treatment to reshape the underlying corneal tissue, which corrects vision issues such as myopia, hyperopia, and astigmatism. The use of the microkeratome is integral to the LASIK procedure because it allows for a controlled and uniform creation of the corneal flap, which is essential for the subsequent laser ablation process. This advancement in technique has contributed to the overall safety and efficacy of LASIK, making it one of the most popular refractive surgeries. In contrast, photorefractive keratectomy (PRK) is a procedure that does not use a microkeratome; instead, it involves the direct removal of the epithelial layer of the cornea, followed by laser treatment to reshape the surface. Astigmatic keratotomy, another refractive surgery, involves making incisions in the cornea to correct astigmatism rather than using a flap. Penetrating keratoplasty (PKP)

The technique that employs a microkeratome is laser in situ keratomileusis, commonly known as LASIK. This surgical procedure involves creating a thin flap in the cornea using the microkeratome, a precise surgical instrument. By lifting this flap, the surgeon can then apply laser treatment to reshape the underlying corneal tissue, which corrects vision issues such as myopia, hyperopia, and astigmatism.

The use of the microkeratome is integral to the LASIK procedure because it allows for a controlled and uniform creation of the corneal flap, which is essential for the subsequent laser ablation process. This advancement in technique has contributed to the overall safety and efficacy of LASIK, making it one of the most popular refractive surgeries.

In contrast, photorefractive keratectomy (PRK) is a procedure that does not use a microkeratome; instead, it involves the direct removal of the epithelial layer of the cornea, followed by laser treatment to reshape the surface. Astigmatic keratotomy, another refractive surgery, involves making incisions in the cornea to correct astigmatism rather than using a flap. Penetrating keratoplasty (PKP)