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Laser Eye Surgery, Revisited 10 Years Later

QuantumPion My LASIK story (540 comments)

I had been considering getting LASIK for years but kept putting it off out of fear of damaging my sight, or the idea that technology would improve in the future and make the outcomes better/less risky. About two years ago though I started getting terrible headaches due to Temporomandibular joint dysfunction, caused by my glasses. Basically, the feel of my glasses on my face was causing me to contract my facial muscles so much that it was giving me severe headaches and sometimes even a jaw so sore I could not open my mouth. I tried contacts several times over the years but none of the brands worked for me - they were too dry, too irritating, and I was unable to focus on computer screens with them for some reason (necessitating needing contacts + reading glasses!).

So finally in spring 2013 I finally got the nerve (and HSA funds saved up) to get LASIK done. I went to a highly reputable doctor, whom has performed more procedures than anyone else in the country (including several famous actors and athletes). They told me going in that no surgery is perfect and to have realistic expectations. I was an excellent candidate, I had nice thick corneas and moderate myopia and astigmatism. The only problems were my eyes were a little on the dry side and my pupils dilate greater than the treated area. I went ahead with the surgery anyway, once I had the nerve to go through with it I was extremely excited and eager to have it done and be able to enjoy the rest of my youth without needing glasses.

My results came out very good, but not perfect. A friend of mine whom had LASIK just before myself was disappointed because they under corrected her. Knowing this, I asked the doc to not under correct, I wanted the full correction. I ended up getting about 20/15 in both eyes, so I was very happy. I had bad halos and starbursts, which made me somewhat worried. However, those aberrations very gradually went away. It was so gradual that I hardly even noticed that I could no longer see them - but it took over a year. I do have drier eyes even now, so I need to use eye drops once a day or every other day. But they are not irritated or uncomfortable, they just get kind of sticky over a couple days which makes my vision less sharp. The only other downside was my nightvision is kind of...weird. When my pupil dilates greater than the treated area, I see hard to describe aberrations - mainly in point light sources in a dark area that end up having a sort of blur or ghost around them.

Over all, I'm very happy with my results and glad I took the plunge. I don't even remember what it was like to have glasses any more and I love no longer being reliant on them. Especially now since the Oculus Rift is coming out very soon!

5 days ago
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Laser Eye Surgery, Revisited 10 Years Later

QuantumPion Re:My coworker had a bad experience (540 comments)

I had lasik about 1.5 years ago, they didn't mess it up, but I do need to use eye drops every day or every other day. My eyes don't get uncomfortably dry or irradiated, but they get kind of sticky which makes my vision less sharp. So I use eye drops to wash them out basically.

5 days ago
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Laser Eye Surgery, Revisited 10 Years Later

QuantumPion Re:Fear (540 comments)

I was too until I finally had the balls to just do it. I'd rather be able to live the rest of my active youth without the need for glasses than worry about whether I will need bifocals when I'm 40.

5 days ago
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Laser Eye Surgery, Revisited 10 Years Later

QuantumPion Re:Astronomy, and general poor night-time results. (540 comments)

This is the one main gripe I have about the outcome of my surgery. I went in to it knowing that I was susceptible to worse night vision, due to having pupils that dilate larger than the corrected area. At night time, seeing bright objects in an otherwise dark area causes a weird sort of blur or ghost that is hard to describe. It makes visual astronomy more difficult. However despite that negative side effect, my night time vision is still better than it was with glasses - just not 100% perfect. The benefits outweigh the costs and I'm happy with the results overall.

5 days ago
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Laser Eye Surgery, Revisited 10 Years Later

QuantumPion Re:not a permanent fix (540 comments)

I had mine done at TLC which offers lifetime guarantee - they will perform a touch up surgery for free if my vision ever degrades enough to need it again.

5 days ago
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Site of 1976 "Atomic Man" Accident To Be Cleaned

QuantumPion Re:Cecil Kelley (299 comments)

The people who got the highest dose at Hiroshima and Nagasaki also suffered from the other effects of the bomb, like heat and blast, and there wasn't emough left of them to measure

The bombs were detonated at some altitude above the ground so no one could have been close enough to receive that much direct radiation anyway.

about a month ago
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Site of 1976 "Atomic Man" Accident To Be Cleaned

QuantumPion Re:Cecil Kelley (299 comments)

"As far as I am aware the highest radiation dose anyone has received was Cecil Kelley..."

Not to be too snarky, but I believe that some former folks at Hiroshima and Nagasaki would beg to differ.

No. To get that kind of radiation dose from a nuclear explosion you would have to be much closer than the altitude the bombs were detonated at. So close that you would be instantly vaporized by the thermal radiation.

about a month ago
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Site of 1976 "Atomic Man" Accident To Be Cleaned

QuantumPion Cecil Kelley (299 comments)

As far as I am aware the highest radiation dose anyone has received was Cecil Kelley, whom was exposed to a criticality accident at a plutonium processing plant. When the tank stirrer turned on, the geometry of the plutonium solution became critical, exposing him to ~12,000 rem. He died 36 hours later.

See Page 16 for a description of the accident here: http://ncsp.llnl.gov/basic_ref/la-13638.pdf

Or the wiki here: http://en.wikipedia.org/wiki/Cecil_Kelley_criticality_accident

about a month ago
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House Majority Leader Defeated In Primary

QuantumPion Glad Canton lost out of spite (932 comments)

I'm glad Cantor lost, just out of spite. He ran the meanist, ugliest, lyingest, dirty campaign I've ever seen. Running attack ads left and right which were outright lying, just because he could because Bratt didn't have the money to run opposing ads. Cantor was known for not appearing at town halls, snubbing the VCDL and other local conservative groups, and generally treating his own constituents and elections as a nuisance - like a ruling class elite. Apparently, on the day of the election, Cantor was in Washington bragging about how he out-spend Bratt 50-1 in order to crush him to prevent future primary contestants.

about a month and a half ago
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House Majority Leader Defeated In Primary

QuantumPion Re:Can't he still win (932 comments)

He just stated this afternoon that he will not be running as write-in and will be stepping down as majority leader July 31st.

about a month and a half ago
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Group Demonstrates 3,000 Km Electric Car Battery

QuantumPion Re:Not a battery (363 comments)

Ok, not sure what the fucking hell beta did to my comment between editing and submitting, but here it goes again:

This isn't really a "battery" any more so than gasoline is. Technically, you could recover the waste products from gasoline combustion, and using various chemical processes + energy turn it back into gasoline. But that doesn't mean your gas tank is a battery. Same goes for this thing. It is basically an engine burning aluminum. Traveling 3000 km in a car that gets 50 mpg requires about 100 kg of gasoline, so this has about the same energy density.

about 2 months ago
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Group Demonstrates 3,000 Km Electric Car Battery

QuantumPion Not a battery (363 comments)

This isn't really a "battery" any more so than gasoline is. Technically, you could recover the waste products from gasoline combustion, and using various chemical processes + energy turn it back into gasoline. But that doesn't mean your gas tank is a battery. Same goes for this thing. It is basically an engine burning aluminum. Traveling 3000 km in a car that gets 50 mpg requires of gasoline, so this has about the same energy density.

about 2 months ago
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Belief In Evolution Doesn't Measure Science Literacy

QuantumPion Re:Wait a sec (772 comments)

We know that there is something that causes attraction between objects and can make predictions based on our observations of that effect,

This is the realm of science.

but we can't explain with any certainty how it actually works or why it exists.

This is not the realm of science.

about 2 months ago
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Russia Bans US Use of Its Rocket Engines For Military Launches

QuantumPion Re:Space programs as a crowbar? (522 comments)

Iraq was a war for oil only in the sense that Saddam invaded our ally, Kuwait, whom we agreed to protect, to annex their oil fields.

about 3 months ago
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Sony Warns Demand For Blu-Ray Diminishing Faster Than Expected

QuantumPion Re:Blank Media (477 comments)

That may have been the case 10+ years ago when most people still had 20" CRT TV's. Now that 50" LCD TV's can be had for under $500, not so much.

about 3 months ago
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Drone Camera Tornado Coverage Raises Press Freedom Questions

QuantumPion Re:It depends on the hat you're wearing (143 comments)

Lewinsky wasn't the one charging sexual harassment. She was a willing participant, but was the witness to attest for the person whom was unwillingly harassed, Paula Jones. The case didn't "blow up on technicalities", Clinton was found guilty of obstruction of justice and perjury, and settled the case w/ Paula Jones. The House impeached Clinton but the Democrat controlled senate refused to convict.

about 3 months ago
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Drone Camera Tornado Coverage Raises Press Freedom Questions

QuantumPion Re:It depends on the hat you're wearing (143 comments)

You are confused. Monica Lewinsky was the witness to attest that Clinton did garner sexual favors from interns. The sexual harassment suit was by Paula Jones, whom was NOT willing to give sexual favors and thought that her boss making such advances was a highly hostile work environment.

about 3 months ago
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Drone Camera Tornado Coverage Raises Press Freedom Questions

QuantumPion Re:It depends on the hat you're wearing (143 comments)

Clinton wasn't impeached for having an affair. Clinton was impeached for pressuring a subordinate intern for sexual favors, lying in court, and pressuring witnesses to lie in court.

about 3 months ago
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Decommissioning Nuclear Plants Costing Far More Than Expected

QuantumPion Re:It is expensive and it always will be. (288 comments)

Burnup is the standard science and industry term for fission energy produced per kg of fuel.

about 2 months ago
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Decommissioning Nuclear Plants Costing Far More Than Expected

QuantumPion Re:Increase fuel burnup and this becomes cheap ! (288 comments)

> a result of extremely inefficient solid fuel reactors cooled by water

, a design which was chosen over thorium reactor designs because thorium reactors do not produce any significant amount of "waste" plutonium required for nuclear weapons production.

Fixed that incomplete thought for you.

That is not accurate. Thorium breeder reactors produce weapons-grade U-233. And a reactor designed to use liquid fuel with on-site reprocessing can very easily extract this weapons grade material. It is even easier to do so than a U-238 breeder reactor cause you don't have to worry about burnup requirements limiting Pu-240 production.

The reason why we went with UO2 based reactors instead of thorium ones is simply because that is where our knowledge base stemmed from. UO2 worked and thorium didn't offer any significant advantage worth starting over from scratch on.

about 2 months ago

Submissions

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Obama's EPA Makes A Rad Decision

QuantumPion QuantumPion writes  |  about a year ago

QuantumPion (805098) writes "The Environmental Protection Agency released draft guidelines last month that could significantly relax radiation hazard standards in the case of a radiological event in the United States by using risk-based decisions.

“Think of it this way. The situations covered by these new guidelines are similar to someone dying of thirst who has the chance to drink fresh water having 2,000 pCi per gallon of radium in it. While the safe drinking water levels are 20 pCi/gal for Ra, 2,000 pCi/gal is of no threat, especially if you’re going to die from imminent dehydration. Of course, a bag of potato chips has 3,500 picocuries, so go figure.”"

Link to Original Source

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