Release date: 2012-11-30 Source: Kexun Feminine Ph Strips,Vaginal Ph Test Strips,Feminine Ph Test Strips,Nutrablast Feminine Ph Test Changchun LYZ Technology Co., Ltd , https://www.lyzstrips.com
The femtosecond laser is a breakthrough in the field of ophthalmic laser treatment. In October 2012, Peking University People's Hospital ophthalmology newly introduced the EagleVision WaveLight FS200 femtosecond laser surgery system. At present, the LASIK operation of femtosecond laser instead of the traditional mechanical corneal lamellar flap has become the trend of refractive surgery, making corneal refractive surgery truly enter the era of “no knifeâ€.
The femtosecond laser is infrared light that can be positioned at any level of the corneal tissue, using its ultrashort pulses and ultra-high energy density to precisely cut the focused tissue. Femtosecond laser flaps are more predictable, the standard deviation of the thickness of the corneal lamellar flap is 30-45 microns, and the standard deviation of the flap thickness of the femtosecond laser flap is 5-10 microns, so part of the cornea is thin Patients with high myopia can choose to undergo LASIK surgery with femtosecond laser flaps. The corneal flaps made by traditional corneal lamellar knives are usually crescent-shaped, and a corneal flap with a more uniform thickness can be obtained by using femtosecond laser flaps, which can reduce the increase of surgical corneal phase difference and improve postoperative visual quality. . In the past, patients with a small corneal diameter and a large curvature could not use a corneal lamellar valve to select a femtosecond laser.
The EagleVision WaveLight FS200 femtosecond laser introduced by Peking University People's Hospital is the fastest surgical system for flapping. The laser flapping process takes only 6 seconds to complete. The personalized flap function makes the postoperative corneal flap fit more stable, greatly reducing the possibility of postoperative corneal flap displacement and wrinkling, and greatly improving the safety of surgery.
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