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Myopia is the most common refractive vision disorder in children and young people, and it is also the biggest risk factor for blindness in adulthood
.
Myopia is a complex disease with both environmental and genetic factors
.
Many studies have shown that, including family history, increased close work, educational pressure, socioeconomic status and less outdoor activities are all related to myopia
.
The incidence of myopia is also increasing rapidly.
According to relevant data, there are more than 600 million people with myopia in China, and 20% of them suffer from high myopia
.
According to data released by the "2021 Exercise and Sleep White Paper", there are currently more than 300 million people in China with sleep disorders
.
If the above two groups of people overlap, that is, "myopia and sleep disorders", does that mean that there is a connection between myopia and sleep? Recently, in a study published in "Sleep", a research team led by Flinders University in Australia provided new insights into the biological and environmental factors behind myopia
.
The study found that compared with people with normal vision, myopic people spend longer to fall asleep, sleep for less time at night, and are more likely to go to bed late or become "night owls
.
"
Moreover, these sleeping habits are also related to myopia who spend more time using computers or other digital devices before going to bed
.
There has been some evidence that there may be a link between circadian rhythm disorders and the development of myopia.
This study adds new evidence for this link
.
In this study, the researchers recruited 18 myopic and 14 normal-sighted college students aged 20 to 24 participants to stay in the sleep laboratory.
.
They collected saliva samples 5 hours before going to bed and 2 hours after waking up to assess the melatonin circadian time (DLMO), and collected urine from 18:00 to the next morning to pass 6-hydroxysulfate melatonin (AMT6s) Assess the production of total melatonin
.
Melatonin is a hormone secreted by the pineal gland that regulates the 24-hour circadian rhythm
.
The secretion of melatonin has an obvious circadian rhythm
.
Under normal circumstances, secretion is suppressed during the day and active at night
.
We will soon produce melatonin after nightfall, reaching peak secretion between 2 and 4 in the morning
.
The researchers found that compared with the normal vision group, the myopia group showed a 1 hour and 12 minutes DLMO delay; the average secretion of melatonin in the urine of the myopia group (29.
17) was also significantly lower than that of the normal vision group (42.
51)
.
These data indicate that myopic people have greater sleep delays, shorter sleep duration, and are more likely to fall asleep late or become "night owls
.
"
In addition, parents in the myopia group are also more likely to be nearsighted, and they spend significantly more time on reading and close work
.
Recently, a meta-analysis of a genome-wide association study involving 542,934 European participants published in Nature Genetics found that genetic factors that regulate circadian rhythms are related to myopia
.
This new study found that the melatonin circadian time (DLMO) of myopic people is delayed by more than an hour compared to those with normal vision
.
In addition, the delay of DLMO is positively correlated with the degree of myopia, that is, people with severe or high myopia show greater delay than those with low and moderate myopia
.
Due to the emergence of artificial light sources and the interference of light-emitting electronic devices used for reading and entertainment on circadian rhythm and sleep has become a recognized health problem in several fields, but its impact on eye health has not been extensively studied
.
This research provides new insights into the biological and environmental factors behind myopia, which will help in the early diagnosis and treatment of myopia in children
.
At the same time, this also tells us that optimal sleep and circadian rhythm are not only essential to overall health, but also essential to good vision
.
Paper link: https: //doi.
org/10.
1093/sleep/zsaa208https:// 2020 hot article selection 1.
The cup is ready! A full paper cup of hot coffee, full of plastic particles.
.
.
2.
Scientists from the United States, Britain and Australia “Natural Medicine” further prove that the new coronavirus is a natural evolution product, or has two origins.
.
.
3.
NEJM: Intermittent fasting is right The impact of health, aging and disease 4.
Heal insomnia within one year! The study found that: to improve sleep, you may only need a heavy blanket.
5.
New Harvard study: Only 12 minutes of vigorous exercise can bring huge metabolic benefits to health.
6.
The first human intervention experiment: in nature.
"Feeling and rolling" for 28 days is enough to improve immunity.
7.
Junk food is "real rubbish"! It takes away telomere length and makes people grow old faster! 8.
Cell puzzle: you can really die if you don't sleep! But the lethal changes do not occur in the brain, but in the intestines.
.
.
9.
The super large-scale study of "Nature Communications": The level of iron in the blood is the key to health and aging! 10.
Unbelievable! Scientists reversed the "permanent" brain damage in animals overnight, and restored the old brain to a young state.
.
.
.
Myopia is a complex disease with both environmental and genetic factors
.
Many studies have shown that, including family history, increased close work, educational pressure, socioeconomic status and less outdoor activities are all related to myopia
.
The incidence of myopia is also increasing rapidly.
According to relevant data, there are more than 600 million people with myopia in China, and 20% of them suffer from high myopia
.
According to data released by the "2021 Exercise and Sleep White Paper", there are currently more than 300 million people in China with sleep disorders
.
If the above two groups of people overlap, that is, "myopia and sleep disorders", does that mean that there is a connection between myopia and sleep? Recently, in a study published in "Sleep", a research team led by Flinders University in Australia provided new insights into the biological and environmental factors behind myopia
.
The study found that compared with people with normal vision, myopic people spend longer to fall asleep, sleep for less time at night, and are more likely to go to bed late or become "night owls
.
"
Moreover, these sleeping habits are also related to myopia who spend more time using computers or other digital devices before going to bed
.
There has been some evidence that there may be a link between circadian rhythm disorders and the development of myopia.
This study adds new evidence for this link
.
In this study, the researchers recruited 18 myopic and 14 normal-sighted college students aged 20 to 24 participants to stay in the sleep laboratory.
.
They collected saliva samples 5 hours before going to bed and 2 hours after waking up to assess the melatonin circadian time (DLMO), and collected urine from 18:00 to the next morning to pass 6-hydroxysulfate melatonin (AMT6s) Assess the production of total melatonin
.
Melatonin is a hormone secreted by the pineal gland that regulates the 24-hour circadian rhythm
.
The secretion of melatonin has an obvious circadian rhythm
.
Under normal circumstances, secretion is suppressed during the day and active at night
.
We will soon produce melatonin after nightfall, reaching peak secretion between 2 and 4 in the morning
.
The researchers found that compared with the normal vision group, the myopia group showed a 1 hour and 12 minutes DLMO delay; the average secretion of melatonin in the urine of the myopia group (29.
17) was also significantly lower than that of the normal vision group (42.
51)
.
These data indicate that myopic people have greater sleep delays, shorter sleep duration, and are more likely to fall asleep late or become "night owls
.
"
In addition, parents in the myopia group are also more likely to be nearsighted, and they spend significantly more time on reading and close work
.
Recently, a meta-analysis of a genome-wide association study involving 542,934 European participants published in Nature Genetics found that genetic factors that regulate circadian rhythms are related to myopia
.
This new study found that the melatonin circadian time (DLMO) of myopic people is delayed by more than an hour compared to those with normal vision
.
In addition, the delay of DLMO is positively correlated with the degree of myopia, that is, people with severe or high myopia show greater delay than those with low and moderate myopia
.
Due to the emergence of artificial light sources and the interference of light-emitting electronic devices used for reading and entertainment on circadian rhythm and sleep has become a recognized health problem in several fields, but its impact on eye health has not been extensively studied
.
This research provides new insights into the biological and environmental factors behind myopia, which will help in the early diagnosis and treatment of myopia in children
.
At the same time, this also tells us that optimal sleep and circadian rhythm are not only essential to overall health, but also essential to good vision
.
Paper link: https: //doi.
org/10.
1093/sleep/zsaa208https:// 2020 hot article selection 1.
The cup is ready! A full paper cup of hot coffee, full of plastic particles.
.
.
2.
Scientists from the United States, Britain and Australia “Natural Medicine” further prove that the new coronavirus is a natural evolution product, or has two origins.
.
.
3.
NEJM: Intermittent fasting is right The impact of health, aging and disease 4.
Heal insomnia within one year! The study found that: to improve sleep, you may only need a heavy blanket.
5.
New Harvard study: Only 12 minutes of vigorous exercise can bring huge metabolic benefits to health.
6.
The first human intervention experiment: in nature.
"Feeling and rolling" for 28 days is enough to improve immunity.
7.
Junk food is "real rubbish"! It takes away telomere length and makes people grow old faster! 8.
Cell puzzle: you can really die if you don't sleep! But the lethal changes do not occur in the brain, but in the intestines.
.
.
9.
The super large-scale study of "Nature Communications": The level of iron in the blood is the key to health and aging! 10.
Unbelievable! Scientists reversed the "permanent" brain damage in animals overnight, and restored the old brain to a young state.
.
.
