Lack of sleep is not only harmful to the body or mind but also results in vision problems.
This was revealed in a new medical study conducted in China.
Research has shown that sleeping too little or too long, snoring, daytime sleepiness and insomnia can increase the risk of the common eye disease cataracts.
Millions of people around the world face this vision disease, which also increases the risk of blindness.
The study analyzed the data of more than 400,000 people from the UK.
More than a decade of research has examined the effects of sleep problems on vision.
Research has found that sleep problems increase the risk of developing cataracts and can even lead to vision loss if left untreated.
According to researchers, snoring, afternoon drowsiness, insomnia, too little or too much sleep are all risk factors for cataracts.
He said that the results show the importance of sleep and that people experiencing sleep problems should seek help from experts.
Earlier research reports also indicated that there is a link between sleep deprivation and cataract diagnosis, but this issue was not investigated in depth.
The study found that snoring and daytime sleepiness increased the risk of cataracts by 11 percent, while insomnia, too little or too much sleep, increased the risk by 13 percent.
The researchers acknowledged that the study did not determine why sleep problems increased the risk of cataracts, so more research is needed.
The results of the study were published in the journal BMJ Open.