How Many Degrees of Myopia Can Cause Blindness?

Why does myopia make people blind

The main cause of myopia is axial growth.

The eye axis is too long, so the light cannot focus on the retina accurately, but falls in front of the retina, so it will be blurred when looking at things in the distance.

The degree of myopia is positively correlated with the length of the ocular axis. If the eyeball is compared to a balloon, the growth of the ocular axis is like inflating the balloon. In this process, the balloon wall (retina) is thinner and thinner. To a certain extent, the balloon wall (retina) can no longer support, and you are blind at this time.

How many degrees of myopia are more likely to be blind

Remember, 600 degrees is a watershed!

Myopia can be divided into three stages according to degrees

Mild myopia: the degree of myopia is between 100-300 degrees

Moderate myopia: the degree of myopia is between 300-600 degrees

High myopia: the degree of myopia is more than 600 degrees

Mild to moderate myopia is still a little far from becoming blind (but not impossible). You have to pay attention to entering the category of high myopia. Problems such as glaucoma and cataract may catch up with you. Once you develop pathological myopia, becoming blind is so easy.

What diseases caused by myopia can make people blind

#Retinal detachment#

Warning signal: there is a "flash feeling" in front of you

Retinal detachment refers to the separation of retinal neuroepithelial layer and pigment epithelial layer, which is the situation of balloon explosion mentioned above. The detached part of the retina cannot perceive light stimulation, resulting in incomplete or complete loss of images from the eyes. Some studies have pointed out that the probability of retinal detachment in patients with high myopia is about 30 times that of ordinary people. It should be noted that there is no pain in retinal detachment. If there are many floating objects, flash or curtain like shadows in front of you, you must see a doctor immediately.

#Glaucoma#

Warning signal: reduced / missing field of vision

High myopia will lead to elevated intraocular pressure. One consequence of elevated intraocular pressure is glaucoma, which is the second eye disease with blindness rate in the world. The probability of glaucoma in patients with high myopia is 6-8 times that of ordinary people. The early symptoms of glaucoma are not obvious. I feel tired eyes at most, but the incidence is very fast. Once the visual field is missing from the outside to the inside, we should pay attention to 

#Cataracts#

Early warning signal: white fog, discoloration and deformation

Cataract is the eye disease with the highest blindness rate in the world, and high myopia is one of the high causes of early-onset cataract. After high myopia, the nutritional metabolism in the eye is abnormal, resulting in the turbidity of the lens until the line of sight is blocked. When you look at things, you will be foggy, and there will be discoloration and deformation.

to make a long story short

High myopia has many complications

So patients with high myopia

Be sure to have a fundus examination regularly

You should also pay attention to protecting your eyes at ordinary times