Abstract: during pregnancy, the endocrine levels of pregnant women change, water and sodium retention cause eyelid edema and inflammation, and the moisture in the tear film is more easily evaporated, while the tear secretion in the same period is relatively reduced, and the uniform distribution of the tear film is damaged, resulting in * xerophthalmia. Therefore, please do not wear contact lenses during pregnancy.
Ms. Liu has been very distressed recently. Since she became pregnant in February this year, she has often had nausea, nausea and pantothenic acid reactions. Her eyes often swell and ache, and she even looks blurred. The problems of
made her think all day and even fear. She even had the idea of leaving her child, which made the whole family nervous.
last weekend, the family took Ms. Liu to the hospital for examination. The doctor told her not to worry. This is a common red eye during pregnancy.
originally, women’s physical functions during pregnancy, such as endocrine, blood, cardiovascular and immune functions, will change to adapt to embryonic development. These changes will have different effects on the eyes, and even bring specious “eye diseases”.
like Ms. Liu, the symptoms such as eye congestion and conjunctival redness and swelling caused by endocrine changes after pregnancy are normal.
expectant mothers may also have these eye abnormalities during pregnancy.
have thick tears: during pregnancy, due to the influence of hormones, the water in the tears is easier to evaporate, the tears will become thicker, and the function of protecting the cornea and conjunctiva of the eyes will become weaker.
eyes are dry and tired. During pregnancy, the endocrine level of pregnant women is changed, and the retention of water and sodium causes edema of the eyelid, and the water in the tear film is more easily evaporated, while the tear secretion in the same period is relatively reduced, and the uniform distribution of the tear film is damaged, causing dry eye. Therefore, please do not wear contact lenses during pregnancy.
sometimes have hazy feeling when looking at near objects: in the 7th to 9th months of pregnancy, pregnant mothers are prone to hazy feeling or unclear situation when looking at near objects. Most of the reasons are caused by mild ametropia or corneal edema. According to statistics, the average increase of corneal thickness during pregnancy is about 3%, and the more to the third trimester of pregnancy, the more obvious the edema is.
myopia deepens: the corneal radian will become steeper during pregnancy, It also produces mild ametropia (about 0.25-1.25 diopter change), weakened ciliary muscle regulation ability and blurred myopia; if the pregnant woman has myopia itself, the degree of myopia is deepened. In the third trimester of pregnancy, ametropia is more obvious, but it can return to normal 5-6 weeks after delivery.
Doctors suggest that most of the eye symptoms produced by women during pregnancy will disappear by themselves. As long as expectant mothers pay attention to eye hygiene, pay attention to a balanced diet, take more vitamins A and C beneficial to the eyes, and cooperate with regular eye examination, their eyes will soon recover.
in addition, according to the modern diet, pregnant women usually eat too many drinks and fine grains, resulting in too much sugar in the body and premature development of fetal crystals, which is more likely to be myopia.
no matter how old you are, you may have the impression that compared with more and more “small glasses”, you had much less myopia ten or even decades ago.
you may wonder: why is the gap between the two adjacent generations so large?
fine grains and drinks contain high sugar content.
why parents have less myopia, experts analyze that this is not a coincidence. Maybe people aged 40 ~ 50 have such a memory, lying in the quilt and reading comic books with a flashlight, but people in that era were less myopic. But now, under the protection of eye protection lamps and anti radiation screens, the number of children with myopia has only increased a lot. This may be related to the diet.
with the improvement of living standards, our diet is becoming more and more refined. Coarse grains are gradually replaced by fine grains, and some high sugar diets are unconsciously entering our table. Like drinks, refined rice, refined noodles, etc. Although the taste is good, taking refined rice as an example, in the process of processing, layer by layer shelling will also lead to the loss of vitamins. When processed into refined rice, there are few vitamins left that are beneficial to eye development.
too much sugar leads to excessive fetal crystal development.
nowadays, due to the continuous improvement of living standards, people’s diet structure is more and more refined, and they consume more and more fine grains, including more and more sugar. As we all know, excessive intake of sugar in the body is harmful to the development of eyes.
from the perspective of nutritional composition, for a normal person, excessive intake of sugar may cause accumulation of sugar in the body. When sugar is metabolized in the body, a large number of vitamins are required, so vitamins will be insufficient due to excessive consumption. The development of ocular visual cells also needs a lot of vitamins.
are especially true for pregnant women. If too much sugar is consumed, it will lead to abnormal crystal development environment, rapid ocular axis development and accelerate the occurrence of myopia. Animal experiments have shown that allowing experimental animals to eat too much sugar has an impact on their eyesight.
infants have physiological hyperopia. Experts from
say that children are born with certain hyperopia, which is a normal process of eye development and is called physiological hyperopia.
because the eyeball of infants is smaller than that of adults, the eyeball size of infants at 6 months is only equivalent to 2 / 3 of that of adults, and the distance between the eye axis is shorter than that of fully developed normal eyes, so the image will be formed behind the retina to form physiological hyperopia. From the child’s birth to the age of 7, the child’s eyeball develops most rapidly, the eye diopter also gradually moves towards myopia, and the degree of hyperopia gradually decreases. If it exceeds the normal range, it is abnormal or pathological hyperopia. With the growth of children’s age, the focus moves forward, and the hyperopia gradually transitions to emmetropia.
sugar can “eat” the fetal hyperopia time. The influence of
sweets on myopia can not be ignored. The process of
children from hyperopia to myopia can be divided into the following steps: physiological hyperopia, emmetropia and myopia. “kThe normal value of DSPE “
is about 200 degrees of hyperopia at the age of 3 ~ 4, 150 degrees of hyperopia at the age of 4 ~ 5 and 100 degrees of hyperopia at the age of 6 ~ 8. However, the excessive myopia of children may be related to the excessive intake of sugar during pregnancy, resulting in premature crystal development of children.
children’s eyesight is approaching adulthood too early, which may make them directly” skip “physiological hyperopia. They are born with emmetropia, so the time to develop myopia is shortened, and the number of children with myopia begins to increase.