Fetal retinal development time

Pregnancy is not as easy as imagined. From morning sickness at the beginning, to the noise of the baby in the belly, and even loose hands and feet and inability to turn over, all these discomforts make mothers suffer. But for the sake of the baby, it is always worth it. Mothers are also concerned about the growth and development of the baby. If they want to know how a cute baby is doing, then, when is the critical period of fetal eye development?

When is the critical period for the growth and development of the fetus' eyes?

The baby will have eyesight while in the mother's belly, especially from one to four months, which is a critical period for the baby's vision. Pregnant mothers should not be tired, they should rest regularly, have a balanced diet, eat more carotene and vitamins, and also pay attention to supplementing nutrients such as calcium and zinc, which are indispensable during the critical period of fetal visual development. In addition, pregnant mothers should not eat sweets, as excessive sugar accumulation will also affect the baby's eyesight. At 11 weeks of pregnancy, the fetus in the belly undergoes a major change, which is an important milestone in the fetus's physical development. At this time, his heart begins to supply blood to the internal organs independently, while before, it communicated blood with the mother through the fetal umbilical cord. He also learned some new postures - yawning, sucking and swallowing. In fact, the baby already has vision when it is in the mother's womb. Due to incomplete growth and development, the baby's visual nerves will gradually develop and mature after birth! The following are several key periods of the baby's eye development. During this time period, the mother needs to supplement more foods that are beneficial to the fetus, which will be beneficial to the baby after birth. The critical period for the growth and development of the fetus's eyes is 6 weeks out of 22 weeks, which is from January to April. The baby will have vision when the pregnancy starts at 6 weeks. As the baby gradually develops to the 22nd week of pregnancy, he can open his eyes and look around. By the 32nd to 33rd week of pregnancy, the baby's strength has developed well. It can distinguish light from darkness. If the pregnant father shines a flashlight on the baby's head, he will close his eyes. The baby can see the whole world more than ten minutes after being born.

What should mothers eat to help their babies see

During the development of the baby's eyesight during puberty, the mother should not eat too much sugar, as it will affect the baby's eyesight. Some information shows that the reason why newborns become nearsighted after birth may be related to the high sugar intake of their mothers during pregnancy. There are also experiments overseas that confirm that α-a linolenic acid can improve the vision of fetuses and infants, and α-a linolenic acid also affects the optic nerves. If the intake of α-a linolenic acid is low, the fundus macular potential difference test will reveal abnormalities. If a newborn baby lacks α-a linolenic acid during pregnancy or after birth, the DHA content in the unsaturated fatty acid of the macula of the newborn baby's fundus will be reduced by half, and the gray matter of the brain will be reduced by 1/4, which will significantly weaken the newborn's vision and affect the future vision. Because pregnant mothers are the key service providers of nutrition for the fetus and infant, mothers during pregnancy and breastfeeding should pay attention to the intake of α-a linolenic acid.

There is a small amount of α-a linolenic acid in food, such as the dried fruits, walnut kernels, salmon, bluefin tuna, etc. that we often eat, but the α-a linolenic acid in these foods is not pure enough and is very expensive. Eating more soy protein during pregnancy is beneficial to the growth and development of the fetus's eyelashes. For example, soybeans, black sesame powder, corn, etc. Fruits containing vitamin D: cantaloupe, peach When vitamin D is deficient, the eyes' ability to adapt to dark environments is reduced, and in severe cases, it is easy to suffer from night blindness. Vitamin D can also prevent and treat dry eyes, so pregnant mothers should take in enough vitamin D every day to ensure the good growth and development of the fetus's eyes! Fresh fruits containing vitamin B2 group: bananas, apples, red grapes, pears. The macula of the fundus of the eyes stores a lot of dispersed vitamin B22. A deficiency of B vitamins can cause photophobia, tearing, burning pain and itching, visual fatigue, and eye spasms. Therefore, pregnant mothers should ensure that vitamin B22 is sufficient so that the baby's eyes will be better in the future.