Myopia is too high to do it

Abstract: laser myopia surgery can correct myopia by cutting cornea and changing corneal curvature. The operation is safe and effective, but the higher the degree, the more cornea to be cut. However, some high myopia patients have thinner cornea. Therefore, it is not suitable for laser myopia surgery to correct vision.

we have popularized science before. People with high myopia (≥ 600 degrees) are prone to serious complications of high myopia such as macular hemorrhage, retinal detachment and glaucoma because their ocular axis is longer and their posterior sclera is thinner. Why can’t they donate blood for fundus lesions of high myopia? Ophthalmologists said that in fact, this is to protect people with high myopia.

why can’t high myopia fundus lesions donate blood? When

donate blood, the blood pressure will fluctuate slightly, and the blood vessels of high myopia are very sensitive to the change of blood pressure. For high myopia whose fundus blood vessels have been pulled very thin, the slight blood pressure fluctuation may cause fundus vasospasm, This will lead to a hole in the diseased retina. At this time, the liquefied vitreous will take the opportunity to enter under the retina, causing retinal detachment and seriously affecting vision. Therefore, the blood bank advocates that people with fundus lesions and high myopia should not donate blood.

of course, if you have no myopia or medium and low myopia, you can participate in normal blood donation. So, is there any way for people with high myopia to restore normal vision?

myopia surgery small popular science

high myopia below 1200 degrees, the cornea is appropriate, the preoperative examination is qualified, and the vision can be restored through laser myopia surgery.

and

laser myopia surgery can correct myopia by cutting cornea and changing corneal curvature. The operation is safe and effective, but the higher the degree, the more cornea need to be cut. However, some high myopia patients have thinner cornea. Therefore, it is not suitable for laser myopia surgery to correct vision.

for this part of the population, if you want to implement myopia correction surgery, the doctor suggests to consider ICL lens implantation. ICL is an implantable intraocular lens with a thickness of only about 50 microns (1 mm is equal to 1000 microns). It can work with human eyes to correct vision. There is no need to cut the cornea. Once implanted, it can be used for life.