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郑州近视眼多少度可以手术
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钱江晚报

发布时间: 2025-06-02 08:16:13北京青年报社官方账号
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  郑州近视眼多少度可以手术   

WAUWATOSA, Wis. — A 3-year-old in Wisconsin can see for the first time thanks to a new procedure.  McKinley Sovey is the youngest person to undergo this type of gene therapy. Her parents Parker and Julie Sovey have been watching her progress."There was that moment when she did look at me for the first time," said Julie. "I was like I think this is working. I can't even really explain it.  She's 3 years old and she looks at mom for the first time. It was a really really cool moment and it was the moment I was waiting for."McKinley was born practically blind. The most she could see was the contrast of light. When she was a year and a half, doctors discovered she inherited a retinal disease.  "Six months after that FDA approval, and then less than a year after that she's having the procedure, so it's been like rapid fire," Parker said. Dr. Stephen Russell works in the Department of Ophthalmology and Visual Sciences at the University of Iowa Hospital. He performed both of McKinley's eye surgeries with the gene therapy earlier this month.  "Complicated drug because it has multiple parts to the drug and complicated surgery because to make sure we delivered the drug to the appropriate tissues," said Russell.Russell said he is basically forcing DNA into the right cell."We had to do a surgery just to put the solution in the appropriate spot, which is in the area underneath the retina," he said. "At that point, it's just fingers crossed that this gene ends up in the spot that it's supposed to," said Julie.The Soveys knew there were risks and potential complications.  "It's terrifying," said Russell.They were hoping the therapy would at least help McKinley maintain the little vision she had. After the first eye surgery, mom and dad didn't notice a difference. But it was shortly after the second surgery they knew it worked. Parker said she was moving with a purpose."She walked into the kitchen, pulled a chair out, stood up on the chair and actively feeling like the toaster and the coffee maker like she knew those were there and she wanted to get up and be able to feel them," he said.McKinley's depth perception is also changing."Being able to see things further away has been really neat and it's also been kind of scary because I feel like I'm having to re-childproof the house for a 3-year-old," said Julie."She use to feel around for whatever it was she was eating," Parker said. "Then she'd put her hands in it to see what it was and then she'd put the spoon in it, and then usually it was dumped by the time it got to her face."McKinley will still likely be visually impaired, but her parents said any progress is a bonus."She may no longer need to be a braille reader," Julie said. "I don't know if she'll need to use a cane to navigate."They said their daughter is becoming more confident and her personality is even changing."This is kind of part of medical history," said Julie.McKinley has some checkups scheduled, but doctors hope she won't need another surgery. 3071

  郑州近视眼多少度可以手术   

WASHINGTON (AP) — The number of immigrants in the U.S. without legal status has declined to its lowest level in more than a decade, according to a new report released Tuesday.The nonpartisan Pew Research Center said 10.7 million immigrants lacked legal status in 2016, down from 11 million a year earlier and from a peak of 12.2 million in 2007 before the U.S. economy slumped.It is the lowest number since 2004, the report said.The decline stems largely from a drop in the number of Mexican immigrants living in the U.S. illegally to 5.5 million in 2016 from nearly 7 million in 2007. Some returned to their country to reunite with family, while others were deported.During the same period, the number of immigrants from Central America without legal status increased to nearly 1.9 million from 1.5 million.The report comes as the Trump administration has cracked down on immigration and bolstered security on the Southwest border, where thousands of Central American families have arrived to seek asylum.The report is based on U.S. Census Bureau data. It also noted an increase in the number of immigrants without legal status from India and Venezuela and a decrease in those from Brazil, Colombia, Ecuador, Korea and Peru.Overall, immigrants without legal status are less likely to be recent arrivals, said D'Vera Cohn, who co-authored the report.The report also notes that the number of legal immigrants grew to 34.4 million from 28.3 million over the nine-year period, and that more than half of the country's legal immigrants in 2016 were naturalized U.S. citizens. 1579

  郑州近视眼多少度可以手术   

We are @wnba players, but like the late, great John Lewis said, we are also ordinary people with extraordinary vision. @ReverendWarnock has spent his life fighting for the people and we need him in Washington. Join the movement for a better Georgia at https://t.co/hC8iF9urak pic.twitter.com/mvN5e9m4oO— Elizabeth Williams (@E_Williams_1) August 4, 2020 361

  

We see them everywhere. People are flying them all over the place, but there's a more serious, nefarious side to what should just be fun.Hackers are turning drones into devices that steal our personal information."It's got a bunch of peripherals…to hack basically anything over the air," Francis Brown, co-founder of Bishop Fox, said.Brown works to find holes in other companies' security systems. He says drones are now taking the bad guys where they're usually not allowed to go."Anything within the vicinity that's speaking over the air that's kind of an ideal platform to kind of just go land to do a drive by outside the window or go land on the roof and then hack something over the air, Brown said."Hackers attach a little computer called a Raspberry Pi to a drone. It looks like a big computer chip and then it's just flown around."These quad copters basically are little laptops with hacker tools on them," Brown said.Wireless, Blue Tooth, and R-F-I-D signals are all vulnerable, these drone can access places a normal hacker couldn't even reach."Buildings that are centrally located inside a corporate campus. There are you know near the street buildings where you couldn't necessarily see the Wi-Fi from the parking lot because it's a secure campus lesser or a wireless in a conference room on the 50th floor that witnesses are going to get from the ground,"  Brown said. So how often is this happening? Brown says it's tough to track, because companies are embarrassed to say if they've been hacked this way. He says the threat alone, should be a wake up call."One of the biggest advantages from a hacker's perspective is that it reduces your chances of getting caught is even more brazen," Brown said.Brown says anyone could be targeted, from an office park to your neighborhood block preventing drones from being there is extremely difficult.  Signal blockers in those frequencies to stop the drones from flying are illegal. 1961

  

WASHINGTON, D.C. – As if 2020 hasn’t been crazy enough, an asteroid is projected to come close to Earth on Nov. 2, the day before Election Day.There’s no need to prepare a doomsday bunker though. NASA says asteroid 2018VP1 is very small, about 6.5 feet, and “poses no threat to Earth!”According to NASA, the asteroid has a .41% chance of entering our planet’s atmosphere and even if it did, it would disintegrate due to its extremely small size.The asteroid was discovered in 2018 by astronomers in California who are on the lookout for dangerous space rocks and other cosmic surprises, The New York Times reports.Asteroid 2018VP1 seems to be making headlines because of its proximity to the contentious U.S. election, but another small asteroid buzzed by Earth just this month and it came closer to the planet than any other on record, according to NASA.The SUV-sized space rock passed 1,830 miles above the southern Indian Ocean on Sunday, Aug. 16 at 12:08 a.m. ET.Since 2005, NASA has been assigned by Congress to find 90% of the near-Earth asteroid that are about 460 feet or larger in size.“These larger asteroids pose a much greater threat if they were to impact, and they can be detected much farther away from Earth, because their rate of motion across the sky is typically much smaller at that distance,” wrote NASA. 1333

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