Why is short-sightedness increasing in children these days?

News Network
June 17, 2021

Myopia is on the rise. In the UK, the number of children with myopia has doubled in the last 50 years. Globally, it’s projected that by 2050 half of the world’s population will be myopic.

Although myopia – also known as near-sightedness or short-sightedness – can run in families, environmental factors, such as spending too much time indoors have a large influence.

For most people, myopia develops from a mixture of both genetics and environmental factors. But while evidence shows that modern lifestyle factors contribute to myopia, scientists still aren’t entirely sure why.

For instance, research shows that the amount of time a child spends outdoors can play a significant role in their risk of developing myopia.

Not only do most studies show that children who spend more time outdoors are less likely to develop myopia, studies requiring children to spend extra time outdoors during school hours have shown the rate of myopia onset decreased compared with children who didn’t spend additional time outdoors.

But researchers still aren’t quite sure why this is the case. One theory is that the higher levels of light outdoors releases more dopamine into our retinal receptors (the nerves that process light signals in the eye), thus protecting against myopia.

Another suggestion is that the greater amount of physical activity children typically get outdoors prevents myopia. But studies have now shown that this has little effect.

It’s also been suggested that the different patterns and details we see in outdoor versus indoor spaces might explain the increase in myopia.

For example, one study suggests that the abundance of plain features and walls in indoor environments is to blame. This may also be why myopia tends to be more common in urban areas, however, more research is needed to understand this.

Modern lifestyles

Nevertheless, modern lifestyles often require us to spend a lot of our time indoors. For example, children are spending longer in formal education thanks to increases in school leaving age and more people pursuing higher education, which evidence suggests can cause myopia.

Yet what aspects of formalised education are causing increases in myopia is still unknown. Prolonged reading, learning at close distances, time spent indoors and increased screen use might all be to blame.

While one study suggests reading at a distance closer than 25cm may be a risk for developing myopia, reading probably only has a small effect on developing myopia.

The effect of greater screen use on myopia in children also has mixed results – probably because estimating screen use and controlling it in a long-term experiment is difficult. Regardless, further research is needed to understand whether excessive screen use is to blame for higher rates of myopia, and why this is the case.

Given the risk factors for developing myopia, there are also concerns now that stay-at-home orders and home learning during the pandemic may have worsened children’s eyesight.

Although there has been no study yet looking at the effect on children in the UK, early results elsewhere suggest that the pandemic may cause more children to develop myopia – but it’s anticipated the effects will be small. Whether the pandemic will have caused permanent increases in myopia is also yet to be seen.

Currently, the best advice for limiting the risk of developing myopia is to increase time spent outdoors, even by 40 minutes a day. 
 

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News Network
April 23,2024

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The Karnataka government's decision to categorise the entire Muslim community as a backward caste for reservation purposes in the state has drawn criticism from the National Commission for Backward Classes (NCBC), which said such blanket categorisation undermines the principles of social justice.

According to the data submitted by the Karnataka Backward Classes Welfare Department, all castes and communities within the Muslim religion have been enlisted as socially and educationally backward classes under Category IIB in the State List of Backward Classes.

The NCBC, during a field visit last year, examined the state's reservation policy for OBCs in educational institutions and government jobs.

"All castes/communities of Muslim religion of Karnataka are being treated as socially and educationally backward classes of citizens and listed as Muslim Caste separately under Category IIB in the State List of Backward Classes for providing them reservation in admission into educational institutions and in appointments to posts and vacancies in the services of the State for the purpose of Articles 15(4) and 16(4) of the Constitution of India," the NCBC said in a statement on Monday night.

This categorisation has led to the provision of reservation benefits for 17 socially and educationally backward castes under Category I and 19 castes under Category II-A, respectively.

The NCBC said the blanket categorisation of Muslims as a backward caste undermines the principles of social justice, particularly for the marginalised Muslim castes and communities identified as socially and educationally backward.

However, the NCBC emphasised that while there are indeed underprivileged and historically marginalised sections within the Muslim community, treating the entire religion as backward overlooks the diversity and complexities within Muslim society.

"The religion-based reservation affects and works against ethics of social justice for categorically downtrodden Muslim castes/communities and identified socially and educationally backward Muslim castes/communities under Category-I (17 Muslim castes) and Category II-A (19 Muslim castes) of State List of Backward Classes. Hence, socially and educationally backward castes/communities cannot be treated at par with an entire religion," the NCBC stated.

The NCBC also voiced concern over the impact of such reservations on the overall framework of social justice, particularly in the context of local body polls.

While Karnataka provides 32 per cent reservation to backward classes in local body elections, including Muslims, the Commission stressed the need for a nuanced approach that accounts for the diversity within these communities.

According to the 2011 Census, Muslims constitute 12.92 per cent of the population in Karnataka.

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News Network
April 25,2024

Bengaluru, Apr 25: Former union minister C M Ibrahim, who was expelled from Janata Dal (Secular) for protesting against party’s alliance with BJP, has stressed on need for a third front not just at the national level, but also in Karnataka. 

Addressing a news conference in Bengaluru on Wednesday, he said he’s planning to form a third front in Karnataka along with Lingayat Seer Dingaleshwar Swami.

Ibrahim said that he will tour the state between April 27 and May 4 and that he would meet Dingaleshwar Swami on April 29. “There is a need for the third front in this country. We will try to establish a third front in association with the seer and we hope we will be successful in those efforts,” he said.

Expressing disappointment with the Congress for not doing enough to gain the full confidence of Muslims, Ibrahim said that Congress is concentrating only on certain communities for votes, and ignoring Muslims. 

“The Congress is not even caring for Muslims and Dalit votes. In some Muslim areas they did not even hold campaigns seeking votes and trying to convince the communities which never vote in their favour. I fear this may lead to low turnout and Congress may lose its vote base,” he opined.

Mentioning about guarantees on which Congress is strongly relying during this election, Ibrahim said, such things won’t work all the time. “Guarantees will not work anymore. Every election you need to give something new to the voters,” he added.

On Prime Minister Narendra Modi’s statement that Congress is trying to appease minorities for votes, Ibrahim requested both Congress and BJP parties not bring Muslims between them. “I request both parties. Leave us alone. Don’t make us sandwiches for your political sake. We are living with peace and hope even the Prime Minister will understand this,” Ibrahim added.

Launching a broadside against Prime Minister Deve Gowda, Ibrahim said, “Deve Gowda has sold his personality itself. Whatever I have told about JD(S) has come true. I pity, a former Prime Minister should not have come to this stage,” he said. 

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News Network
April 27,2024

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"I always wanted to be in a bar fight," said a US police official after pinning a Black man down on the ground and kneeling on his neck. The man later died at a hospital.

Ohio Police have come under intense scrutiny following the release of body camera footage showing officers pinning a Black man to the ground in a bar, reminiscent of the events that led to George Floyd's death in 2020.

The video, released by the Canton Police Department, captured the moments leading up to the death of Frank Tyson, a 53-year-old man suspected of leaving the scene of a single-car accident on April 18.

In the footage, officers are seen confronting Tyson inside a bar, where an altercation quickly ensues. Despite Tyson's pleas for help and his repeated cries of "I can't breathe," officers wrestle him to the ground and handcuff him, with one officer applying pressure to his back near his neck while saying, "You're fine." 

Tyson continues to plead for relief while lying on the floor. After several minutes, officers notice his lack of responsiveness and proceed to administer CPR. Paramedics arrive on the scene and transport Tyson to a local hospital, where he later dies.

In the body cam footage, one police officer can be heard bragging about how he always wanted to be in a "bar fight" with one of the patrons of the establishment. 

The circumstances surrounding Tyson's death draw chilling parallels to George Floyd's fatal encounter with Minneapolis Police in 2020 which sparked global outrage. 

The officers involved in Tyson's case, identified as Beau Schoenegge and Camden Burch, have been placed on administrative leave pending an investigation by the Ohio Bureau of Criminal Investigation. 

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