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Myopia Correction Operating Under Shadowless Lamp To Create A Mirror Free World
- Jun 05, 2018 -

In recent years, myopic laser surgical has undergone tremendous changes in China. The emergence of a new full femtosecond laser SMILE operation leads the correction of myopia astigmatism forward, and "fly" to a safer, more comfortable, more accurate shore.


Due to the fact that the latest knowledge has not been popularized, most people are blind superstition or blind rejection for myopic corrective laser operating, lacking rationality and scientificity. Therefore, the correct and timely communication and dissemination is particularly necessary.


The full femtosecond laser SMILE operation is called the micro incision femtosecond laser corneal stroma lens removal. Femtosecond (10-15 seconds) laser is used to engraving in the cornea and taking out a small lens like part of the corneal stroma. The incision is only 2mm, the time is only 24 seconds. It is suitable for the 500 degree of astigmatic light within 1000 degrees of myopia and the corneal thickness is moderate. Adult myopic astigmatism. Up to now, around 1 million people worldwide have undergone myopia SMILE operating, and more than half of them are in China.


The principle of the full femtosecond laser SMILE operation is to make a micro convex lens directly in the corneal stroma, and do not need to make a large corneal stroma flap. The incision is very small. It does not need the combined treatment of excimer laser, no petal and minimally invasive one. This is the operation of the LASIK (half femtosecond laser FS-LASIK) operation assisted by the femtosecond laser. The quality area is different. The femtosecond laser assisted operating for myopia should be avoided after LASIK.


However, all femtosecond laser SMILE operating is not suitable for all myopic astigmatism. For some moderately myopic patients with thin central corneal thickness, excimer laser epithelial keratomileusis (LASEK) is recommended.


Compared with excimer laser LASIK surgery, LASEK is safer and more effective against severe exercise and external force. LASEK is the use of an appropriate concentration of ethanol to infiltrate the corneal epithelium and retain a complete corneal flap. After the epithelial flap is set off the anterior elastic layer of the cornea, the excimer laser cutting is performed on the front of the cornea. After cutting, the corneal flap is reset and the special protective contact lens is put on the cornea. After skin regeneration and healing, the corrected visual acuity can be achieved 2-3 days after operation.


In a word, strict preoperative examination and assessment, reasonable surgical design, standardized operation flow and postoperative medication and a complete follow-up system are important guarantees for the treatment of high quality surgery.