Abstract: when a baby is born, the transverse diameter of the eyeball is similar to that of an adult, but the longitudinal diameter (eye axis) is very short. In other words, babies are born with hyperopia. With the growth and development, the eye axis lengthens accordingly, and the baby’s eyes gradually change from hyperopia to emmetropia. If the eyeball is overdeveloped and the axis of the eye is too long, it will become myopia., With the increasing improvement of digital technology and computer network, cameras are often used not only in life but also in work, especially in families with babies. More and more young parents like to make photos, videos and even blogs through cameras to record their baby’s growth and preserve every bit of a better life., Our eyes are like a perfect automatic camera, recording what we see and transmitting it to the brain for preservation. How do our eyes see the surrounding environment?, The principle of the camera is that the external environment is focused and imaged through the lens of the camera, and the focus is just on the negative. In our eyes, if the longitudinal diameter of the eyeball is too short, the focus of external object imaging will fall behind the macular region of the retina, which is equivalent to the “negative” of the camera, which is called hyperopia. With the continuous growth of the eye axis, the focus of external object imaging gradually approaches the macular region of the retina. It is normal when it just falls on the macular region of the retina. If the eye axis is too long, the focus of external object imaging will fall in front of the macular region of the retina, which becomes the so-called myopia., The expert’s explanation is that when the baby is born, the horizontal diameter of the eye is not different from that of adults, but the vertical diameter (eye axis) is very short. In other words, babies are born with hyperopia. With the growth and development, the eye axis lengthens accordingly, and the baby’s eyes gradually change from hyperopia to emmetropia. If the eyeball is overdeveloped and the axis of the eye is too long, it will become myopia., The eyes have automatic focusing function when looking far and near, which is called adjustment function in medicine. The baby’s eye adjustment is very strong, usually less than + 1. 50 degree hyperopia can adjust the focus of distant objects to the fundus of the eye through adjustment, and its visual performance is normal., As mentioned earlier, normal babies are hyperopia, their naked vision is not equal to the refractive state, and their refractive state will change with the development of the eyeball. In order to understand the refractive changes of children in detail and find abnormal refractive development in time, it is very necessary to take children for refractive examination regularly., The purpose of taking children for refractive examination regularly is mainly in three aspects.
with the increasing improvement of digital technology and computer network, cameras are often used not only in life but also in work, especially in families with children. More and more young parents like to make photos, videos and even blogs through cameras to record their baby’s growth and preserve every bit of a better life.
our eyes are like a perfect automatic camera, recording what we see and transmitting it to the brain for preservation. How do our eyes see the surrounding environment? The principle of
camera is that the external environment is focused and imaged through the lens of the camera, and the focus is just on the negative film. In our eyes, if the longitudinal diameter of the eyeball is too short, the focus of external object imaging will fall behind the macular region of the retina, which is equivalent to the “negative” of the camera, which is called hyperopia. With the continuous growth of the eye axis, the focus of external object imaging gradually approaches the macular region of the retina. It is normal when it just falls on the macular region of the retina. If the eye axis is too long, the focus of external object imaging will fall in front of the macular region of the retina, which becomes the so-called myopia.
and
experts explain that when the baby is born, the horizontal diameter of the eyeball is not different from that of adults, but the vertical diameter (eye axis) is very short. In other words, babies are born with hyperopia. With the growth and development, the eye axis lengthens accordingly, and the baby’s eyes gradually change from hyperopia to emmetropia. If the eyeball is overdeveloped and the axis of the eye is too long, it will become myopia.
and
eyes have automatic focusing function when looking far and near, which is called adjustment function in medicine. The baby’s eye adjustment is very strong, usually less than + 1. 50 degree hyperopia can adjust the focus of distant images to the fundus through adjustment, and its visual performance is normal.
and
as mentioned above, normal babies are hyperopia, their naked eye vision is not equal to the refractive state, and their refractive state will change with the development of the eyeball. In order to understand the refractive changes of children in detail and find abnormal refractive development in time, it is very necessary to take children for refractive examination regularly.
regularly take children for refractive examination. The purpose is mainly in three aspects.
① early detection of refractive abnormalities, such as high hyperopia, myopia, astigmatism and amblyopia.
② find out whether infants have eye diseases as soon as possible. Check the child’s refractive status, basically go to the ophthalmology department of a regular hospital. In addition to optometry, ophthalmologists will also check the child’s eye position (to determine whether there is strabismus), lens (to determine whether there is congenital cataract) and fundus (to determine whether there is congenital glaucoma or other fundus lesions), which is equivalent to a comprehensive physical examination of the baby’s eyes.