Abstract: compared with frame glasses, contact lenses are in direct contact with the eyeball and are light and compact, so they will not have any discomfort such as pressing the bridge of the nose. The visual effect is also better. It is a good choice for high myopia., In recent years, there are more and more people with myopia, and the population with high myopia is also growing. In the face of patients with high myopia, we not only worry about the clarity of seeing things, but also pay attention to some complications and activity taboos caused by high myopia., In many places, we can see warning signs that people with high myopia can’t play. However, we also see that people with high myopia don’t recommend blood donation in blood donation, which makes people depressed. How can myopia be related to blood donation? Why can’t high myopia donate blood? Let’s take a look at the reasons!, Na, this is high myopia. Blood donation by high myopia will increase the burden on their eyes. In order to ensure eye health, it is not recommended that this group conduct blood behavior., High myopia refers to people with myopia greater than 600 degrees. In patients with high myopia, the anterior posterior diameter of the eyeball is significantly longer, but the retina and choroid cannot grow accordingly, resulting in the elongation and diffuse atrophy of the retina and choroid, and the corresponding blood vessels become thinner. In this way, the blood vessels are very sensitive to the change of blood pressure, and the vitreous body can change from colloid to liquid at the same time., Blood pressure will fluctuate slightly during blood donation. For highly myopic patients whose fundus blood vessels are pulled thin, the slight multifunctional blood pressure wave may cause fundus vasospasm, resulting in a hole in the diseased retina. At this time, the liquefied vitreous body will take the opportunity to enter under the retina, resulting in retinal detachment, which will affect vision in severe cases. Therefore, from the perspective of protecting blood donors, patients with high myopia should not donate blood., Experts said that there have always been many myopic blood donors. Because the degree of high myopia is not clearly specified in China’s blood donation standards, considering astigmatism and other factors, in general practice, it is usually about 500 degrees as the benchmark to patiently advise high myopic blood donors., In addition to not recommending blood donation, high myopia also has terrible complications, such as flying mosquitoes, macular hemorrhage, retinal detachment and so on. Therefore, for patients with high myopia, the best way to deal with complications is to prevent them as soon as possible. Ophthalmic examination shall be carried out regularly, and it is recommended to check once every half a year.,
in recent years, there are more and more people with myopia, and the population with high myopia is also growing. In the face of patients with high myopia, while worrying about the clarity of seeing things, we also pay attention to some complications and activity taboos caused by high myopia.
in many places, we can see warning signs that people with high myopia can’t play. However, we also see that people with high myopia don’t recommend blood donation in blood donation, which makes people depressed. How can myopia be related to blood donation? Why can’t high myopia donate blood? Now let’s take a look at the reasons!
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, that is, high myopia
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. Blood donation by high myopia will increase the burden on their eyes. In order to ensure eye health, it is not recommended that this group conduct blood behavior.
high myopia refers to people with myopia greater than 600 degrees. In patients with high myopia, the anterior posterior diameter of the eyeball is significantly longer, but the retina and choroid cannot grow accordingly, resulting in the elongation and diffuse atrophy of the retina and choroid, and the corresponding blood vessels become more slender. In this way, the blood vessels are very sensitive to the change of blood pressure. At the same time, the vitreous body can change from colloid to liquid. Blood pressure will fluctuate slightly during blood donation of
and
. For patients with high myopia whose fundus blood vessels are pulled thin, the slight multifunction of blood pressure wave may cause fundus vasospasm, resulting in a hole in the diseased retina. At this time, the liquefied vitreous body will take the opportunity to enter under the retina, resulting in retinal detachment, and in severe cases, it will affect vision. Therefore, from the perspective of protecting blood donors, patients with high myopia should not donate blood. Experts from
and
said that there have always been many myopic blood donors. Because the degree of high myopia is not clearly specified in China’s blood donation standards, considering astigmatism and other factors, in general practice, we usually take about 500 degrees as the benchmark to patiently persuade high myopic blood donors.
high myopia not only does not recommend blood donation, but also has terrible complications, such as flying mosquito disease, macular hemorrhage, retinal detachment and so on. Therefore, for patients with high myopia, the best way to deal with complications is to prevent them as soon as possible. Ophthalmic examination shall be carried out regularly, and it is recommended to check once every half a year.
so how to correct high myopia?
1. Myopia patients who wear frame glasses
with a number of heights wear myopia frame glasses. Due to the thick and heavy lenses and obvious visual deformation, they are prone to dizziness and other uncomfortable symptoms. If you wear frame glasses, the discomfort will be more prominent due to the larger frame.
suggestion: use aspherical thin lenses with high refractive index.
2. Wear contact lenses
contact lenses. Compared with frame glasses, because they are in direct contact with the eyeball and are light and compact, they will not have any discomfort such as pressing the bridge of the nose. The visual effect is also better. It is a good choice for high myopia.
in addition to the soft contact lenses that can be purchased in the optical shop, You can also choose rigid contact lenses (RGP) and special rigid glasses (corneal shaping glasses) that can only be matched in the hospital. Wearing corneal shaping glasses is the only way to delay the deepening of juvenile myopia. You can wear them during sleep at night, pick them up after getting up during the day, and maintain clear vision for a day.
3. Myopia surgery
if you are older than 18 years old, you can also consider excimer laser myopia correction surgery to get rid of myopia. However, this operation can not be done by anyone. It must go through full preoperative examination and psychological recognition.
we believe that no matter how high myopia is corrected and treated, it is impossible to make up for it after all, because myopia has been caused and can not be recovered。 Therefore, the best measure is to prevent and control myopia, develop correct eye hygiene habits from an early age, take more outdoor sports, and try to avoid myopia or even high myopia.