Is femtosecond laser safe for corneal flaps? Please explain it to me!

What are the benefits of femtosecond laser flap making Higher safety; Compared with traditional myopia surgery, the application of femtosecond laser in myopia** realizes the "knifeless" operation of surgery, and the accuracy of flap making is improved; Laser surgery to correct vision first has to go through a flap making link, benefit 3: femtosecond flap is thinner; Compared with the traditional surgery using metal plate knife flaps, femtosecond laser flaps are thinner, which can preserve more corneal tissue on the one hand, and expand the suitable population of surgery on the other hand, bringing good news to more myopia patients. Benefit 4:

The valve making time is shorter, and the postoperative effect is more perfect; The femtosecond laser is controlled by a computer, and the flap making time is shorter; shorter postoperative recovery time and tighter corneal reduction; In addition, the femtosecond laser flap is more flat and uniform, which avoids the iatrogenic aberration that may occur after surgery to a large extent, and the postoperative visual effect is more perfect!

Femtosecond is divided into full femtosecond and half femtosecond, full femtosecond does not need to make a flap, half femtosecond is required, these are two surgical methods.

Femtosecond laser myopia surgery is divided into half femtosecond and full femtosecond, half femtosecond is the use of femtosecond laser for flap making, excimer laser for corneal cutting. Femtosecond laser myopia surgery does not require flap making, and the entire process is performed by femtosecond laser.

As soon as the femtosecond laser appeared, it stole the limelight of all laser myopia refractive correction surgery, and the reason for this is that the femtosecond laser is a highlight of the whole process of knifeless surgery, but the real advantage of femtosecond laser is the production of the corneal flap controlled by the computer, so that the corneal flap can not only improve the visual quality after surgery, but also eliminate problems such as glare and night vision loss after surgery. 1.Because the femtosecond laser has an accuracy of microns, which is 100 times more accurate than the mechanical metal keratome, the corneal flap is cut evenly, avoiding the complications of incomplete corneal flap cutting, free flap, button flap, and even corneal flap fragmentation that may be caused by corneal knife cutting; 2.

The femtosecond laser cutting is accurate, the error is only 5um, and the doctor can exclude the error when reserving the thickness of the corneal stromal bed, which increases the safety of LASIK surgery and the feasibility of surgical effect; 3.In the past, 10% of patients who could not undergo traditional LASIK orthopedic surgery due to the thin cornea and high power of the cornea can complete LASIK surgery with confidence after using femtosecond laser to make a corneal flap, expanding the indications of LASIK surgery. In addition, the thicker the corneal tissue preserved by LASIK surgery, the better the postoperative safety. The high accuracy of femtosecond laser to make corneal flaps can retain thicker corneal tissue to the greatest extent, so that the long-term safety of postoperative surgery is also more reliable. 4.

The corneal flap made by femtosecond laser has uniform thickness and smooth stromal bed, which avoids iatrogenic aberration to the greatest extent. 5.The bevel structure of the corneal flap edge just coincides with the anastomosis, which makes the corneal flap stable after reduction, not easy to displace after surgery, and effectively avoids epithelial implantation. The degree of cutting of the flap margin reduced the nerve damage on the cornea, resulting in a significant reduction of 72% in postoperative dry eye syndrome.

The tool for opening the corneal flap during femtosecond laser surgery is the corneal ring, and the general formal and rigorous eye hospitals use disposable corneal rings, and the cost of femtosecond laser myopia surgery in for-profit eye hospitals is too low to consider whether to reuse the corneal ring, the intralase FS femtosecond laser in the United States, the Ziemer LDV da Vinci femtosecond excitation cavity slip quietly lifts the light, and the consumables are plastic.

ZEISS ReLEx laser consumables are made of high-quality optical glass.

Our hospital is a national public, non-profit ophthalmology hospital, which strictly implements the surgical standard of one person and one consumable, so as to make femtosecond laser myopia surgery safer and postoperative visual quality more perfect.

There is a bit of 1, the thickness of the corneal flap is accurate, uniform, and good.

2. The cornea has good biomechanical stability.

3. Personalized corneal flap design (flap size, shape, etc.).

4. There are few complications related to corneal flaps.

The advantage of femtosecond laser surgery is that it can be individualized.