Is it normal for a newborn's pupils to become larger?

The growth and development of various parts of the newborn's body are issues that parents are very concerned about, but one of the more common issues is the newborn's pupils. It is possible that the newborn's pupils are relatively small during the day, and then become larger at night. This makes many parents wonder, is it normal for newborns' pupils to become larger?

The pupil is the small round hole in the center of the iris in an animal or human eye, which is the channel for light to enter the eye. The contraction and expansion of the smooth muscles on the iris can shrink or expand the diameter of the pupil, thereby controlling the amount of light entering the pupil. In addition to changing with the intensity of light, the size of the pupil is also related to factors such as age, refraction, and physiological condition. It is normal for your baby's pupils to change during the day and at night.

Pupils are larger from childhood to adulthood and are largest during adolescence. People with myopia have larger pupils than people with hyperopia. The pupils will dilate when you are nervous or excited, and will shrink when you take deep breaths, do mental work, or sleep. In addition, when there are certain diseases or certain drugs are used, the pupils will dilate or shrink. For example, intracranial hematoma, craniocerebral trauma, encephalitis, gas poisoning, glaucoma, etc., or when using drugs such as adrenaline, can cause the pupils to dilate; pontine hemorrhage, tumors, organophosphorus poisoning, iridocyclitis, etc., or when using drugs such as morphine, can cause the pupils to shrink.

After reading the above sharing, everyone will know that the pupils of newborns become larger. This issue needs to be discussed specifically based on the specific situation. Generally speaking, when the external environment changes such as light stimulation, it will affect the condition of the newborn's pupils to a certain extent. This is normal. However, if the baby's pupils become dilated due to stimulation from drugs or other factors, timely treatment is necessary.