Abstract: high risk sports use balls, sticks or rackets, or have physical contact, including basketball, football, badminton, hockey and other sports with rackets, as well as fencing and water polo.
don’t worry. Sports are divided into low-risk and high-risk
low-risk sports do not use balls, sticks, bats or rackets, and there is no physical contact, including track and field, swimming, gymnastics and cycling;
high risk sports use balls, sticks or rackets, or have physical contact, including basketball, football, badminton, hockey and other sports with rackets, as well as fencing and water polo.
in addition, diving and diving should also be included in high-risk sports; Very dangerous sports have physical contact and do not use eye protection devices, including boxing, wrestling and martial arts.
with the increase of myopia degree, the eye axis continues to elongate. The lengthening of eye axis is the pathological and anatomical basis of myopia. The main lesion is at the back of the eyeball, which is pear shaped or egg shaped, which will cause a variety of eye problems.
the posterior elastic layer of cornea may rupture in high myopia.
sclera thinning in myopia is one of the characteristics of pathological changes. The longitudinal fibers become thinner, and the transverse fibers separate or disappear. This is related to the abnormality of scleral collagen.
is mainly atrophic and can be limited to annular fibers.
due to denaturation and liquefaction, the normal grid structure is damaged, and the gray fibers and vacuoles are increased. Adhesion can occur at the periphery and detachment can occur at the rear.
mainly changed into progressive atrophy and thinning of choroid, including degeneration, destruction of melanocytes and neovascularization. The elastic layer is cracked, showing paint cracks.
because the eyeball is extended backward, the choroid around the optic disc is pulled away from the optic disc. Bruch’s membrane also terminates here, and the sclera is exposed at the absence of the outer layer of the retina and pigment epithelium, thus forming a white arc spot area.
mainly showed degenerative changes. Including atrophy and degeneration. The normal hexagonal arrangement of retinal pigment epithelial cells was replaced by irregular cell layers. There are many pigments outside the cells. Pigment hyperplasia and accumulation at the crack of Bruch membrane.