Why can’t high myopia fundus disease donate blood

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. The blood pressure will fluctuate slightly during

blood donation, 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 and lead to the occurrence of holes in the diseased retina. At this time, the liquefied vitreous body will take the opportunity to enter under the retina, Cause retinal detachment and seriously affect 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?

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.