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. 
 

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 19,2024

pool_0.jpg

In the wake of the tragic drowning of three students at a resort near Ullal on the outskirts of Mangaluru city, the tourism department in Dakshina Kannada is set to implement comprehensive safety guidelines for properties with swimming pools or beach access. This initiative aims to ensure guest safety and prevent similar incidents in the future.

New Safety Mandates for Resorts and Homestays

Rashmi S.R., deputy director (in-charge) of the tourism department, announced, “We will instruct all homestays and resorts to enforce precautionary measures, especially those with pools or direct beach access. Properties must ensure 24/7 supervision, particularly during guest hours. This tragedy highlights the importance of having trained personnel on-site.”

Key Safety Guidelines

The district, home to around 150 homestays and 130 resorts, will see the following measures enforced:

  • Clearly displaying pool depths.
  • Installing adequate safety equipment, such as life buoys.
  • Employing trained lifeguards at all times.
  • Establishing clear pool operating hours.
  • Reviewing and implementing standard operating procedures (SOPs) for pool and beach usage.

Booming Beach Tourism Calls for Vigilance

Manohar Shetty, president of the Association for Coastal Tourism (ACT), Udupi, highlighted the growing popularity of beachside resorts, particularly during peak seasons. Properties in Udupi, often fully booked with tourists from Bengaluru, Mysuru, Kodagu, and Shivamogga, face increasing pressure to maintain safety standards.

Udupi district boasts 22 beachside commercial properties catering to this rising demand.

Shetty emphasized, “Authorities must scrutinize safety measures and carefully evaluate guidelines before issuing new resort licenses. Panchayats should rely on the Karnataka Town and Country Planning Act when handling such cases.”

Long-Term Solutions for Water Safety

Recognizing the need for a cultural shift in water safety, Shetty proposed integrating swimming lessons into school curricula. This move would not only equip students with essential skills but also encourage safe participation in water-based activities.

A Safer Tomorrow for Coastal Tourism

As the tourism sector thrives, Mangaluru’s proactive approach underscores its commitment to visitor safety. The tragic incident serves as a wake-up call, propelling the industry towards stricter regulations and better preparedness, ensuring that coastal vacations remain both enjoyable and safe.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 15,2024

iranarmy.jpg

Iran’s Islamic Revolution Guards Corps (IRGC) has killed or captured 69 terrorists linked to the Israeli spy agency Mossad during a major counterterrorism drill in the country's southeast, its spokesman says.  

General Ahmad Shafaei, the spokesman for the “Martyrs of Security” drill, said Friday that a total of 23 terrorists have been killed and another 46 arrested in various clean-up operations ever since the IRGC Ground Force launched it in the Sistan and Baluchestan province on November 1.

Seven terrorists have also turned themselves in during the period.

“The undeniable fact about terrorists is that they rely on arrogant powers, particularly the intelligence service of the wicked and vicious Zionist regime," Shafaei said.

“Unfortunately, weapons and munitions at terrorists’ disposal are among the most sophisticated ones in the world. This accounts for their heavy dependence.” 

The official stated that several members of the disbanded terror teams were non-Iranian nationals, who had been hired by foreign intelligence agencies to carry out acts of sabotage and terror inside Iran.

In a most recent operation, six terrorists were arrested and four others were eliminated, three of whom were non-Iranians, he added. 

On October 26, ten members of Iran's law enforcement forces were killed in a terrorist attack in the Gohar Kuh district of Taftan in the Sistan and Baluchestan province.

The so-called Jaish al-Adl terrorist group claimed responsibility for the assault, which was one of the deadliest in the province in recent months.

The group has carried out numerous terrorist attacks in Iran, primarily in Sistan and Baluchestan.

Its tactics include the abduction of border guards as well as targeting civilians and police stations within the province to incite chaos and disorder.

In January, Iran launched a military operation during which the headquarters of the Pakistan-based terrorist group was targeted in missile strikes, destroying its infrastructure.

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.
News Network
November 13,2024

lebenonstrikes.jpg

Beirut: The Israeli army on Tuesday continued to launch attacks against civilians in Lebanon, targeting them in several areas without prior evacuation warnings.

However, 13 airstrikes on Beirut’s southern suburbs in the space of only three hours were preceded by evacuation warnings.

The attacks caused no injuries but resulted in widespread destruction of residential buildings and commercial, medical and educational centers.

The airstrikes in southern Lebanon and Bekaa region, reaching Akkar in Lebanon’s far north, erased any hope of a near-term ceasefire settlement.

The strikes were accompanied by an announcement on Israel’s Channel 14 that “the Israeli army has expanded its operations in southern Lebanon to areas it had not reached since the beginning of the ground operation.”

About 50 days have passed since Israel intensified its hostile operations in Lebanon targeting Hezbollah. The death toll from these confrontations and attacks has passed 3,200, with more than 14,000 wounded.

For the first time, an airstrike targeted a mountainous area between Baalchmay and Aabadiyeh on the road leading to Aley, destroying a building housing displaced people.

The mayor of Baalchmay, Adham Al-Danaf, confirmed that “the airstrike targeted a residential building in the Dhour Aabadiyeh area.”

The initial toll from the Ministry of Health showed “five people killed and two injured.”

The raids that targeted Beirut’s southern suburbs for the first time in the morning, unlike nightly raids before, caused huge destruction. Those who evacuated their homes after Israeli warnings, used their phones to record the collapse of empty buildings in Sfeir, Haret Hreik, Bir Al-Abed, Mrayjeh, Laylaki and Hadath.

Israeli warplanes also targeted Tyre, where a strike on a building killed three people and injured many others, while a raid on Tefahta killed a man identified as Kifah Khalil and his family.

Attacks were widespread, with Yater and Zebqine subject to artillery shelling, a civilian being killed in Hermel, and further attacks on Bouday and an area between the towns of Srifa and Arsoun.

A raid on the town of Siddiqin killed two people and injured several others, while an attack on the Mechref farm led to one fatality and multiple injuries.

The search for those missing after an Israeli raid on the town of Ain Yaacoub in Akkar, in the northernmost part of Lebanon, continued until dawn.

During the operation, 14 bodies were retrieved, identified as those of residents displaced from the town of Arabsalim in the Iqlim Al-Tuffah area of the south, along with members of a Syrian family, a mother and three of her children. Additionally, there were 10 people in critical condition.

The targeted residence belongs to a Lebanese citizen, Hussein Hashim, who is reported to be a member of the Syrian Social Nationalist Party.

An airstrike on the town of Saksakiyeh in the Sidon region on Monday night resulted in yet another tragedy.

It appeared that the intended target was the Shoumer family, who just days before lost Hussein Amin Shoumer and his two sisters in a drone strike near Al-Awali River.

Israeli army spokesperson Avichay Adraee issued additional evacuation warnings for towns in the southern region along the Litani River, which, according to estimates from the mayors, are currently 90 percent uninhabited.

In the meantime, Hezbollah announced its continued efforts to “combat the intrusions of Israeli forces and to strike military installations and towns in the north.”

Hezbollah said in a statement that it confronted “an Israeli Hermes 450 drone in the airspace of Nabatieh and forced it to leave Lebanese airspace.”

The party also announced that it targeted “Kfar Blum settlement with a rocket salvo.”

On the Israeli side, air raid sirens sounded in areas of Upper and Western Galilee and in the town of Kiryat Shmona and its surroundings.

The Israeli army confirmed that “a drone exploded in Nesher, east of Haifa, without activating the air raid sirens,” and that “a drone launched from Lebanon crashed into a school in Gesher HaZiv, north of Nahariya.”

Israel’s Channel 13 reported the Israeli military’s assessment regarding Hezbollah’s military strength, claiming that the group currently possesses approximately 100 precision missiles, thousands of artillery shells, and hundreds of rockets. Additionally, it was highlighted that “there are around 200 Lebanese towns that remain unvisited.”

Comments

Add new comment

  • Coastaldigest.com reserves the right to delete or block any comments.
  • Coastaldigset.com is not responsible for its readers’ comments.
  • Comments that are abusive, incendiary or irrelevant are strictly prohibited.
  • Please use a genuine email ID and provide your name to avoid reject.