Red Spot In The Eye Of A Toddler

Eye Floaters What is Eye Floaters Symptoms and Treatment For Eye Floaters

For us to see the world around us lightenters the front of the eye in passes through the vitreous beforeit's focused on the retina the vitreous is the clear gel like fluidinside the eye the retina is the lightsensitive tissuelining the back of the eye frequently tiny clumps of cells forminside the jail like the Trias the shadows these cons cast on thereading are what we perceive as floaters make an appearance dots circles lines clouds or cobwebs in the field divisionfloaters are more common as we reach

middle age time in our life in the vitreous gel canstart to thicken and shrank forming clumps or strandssometimes the shrinking at the vitreous can create tiny tears in the retina as pulls away from the wall of the I ifthese tears bleed new floaters may appear with flashes thevitreous gel is rubbing or pulling up the retina moving it slightly from its normalposition lining the back of the eye

flashes are flashes a blight that appearin your vision intermittently and may be noticeable off and on forseveral weeks to months trauma to the eye can often causefloaters and flashes also migraine headaches can causesplashes floaters and flashes can also be caused by retinal detachment seriouscondition requiring immediate attention warning signs have aretinal detachment are flashing lights a sudden appearance at noon floatersshadows in the side or prefer if your vision

or gray court moving across repealdivision the symptoms don't always mean you're experiencing a retinal detachmentbut you should see your ophthalmologist right away treatments for a detachedretina very but in general the goal is to return theaffected area of the retina to its correct position at the back of the eye there are several techniques for doingthis for example a flexible band called the scleralbuckle is placed around the eyeball to counteract the force pulling the rightnow out of place

blew it may be drained from under thedetached retina allowing it to settle back into itsnormal position against the back of the eye or a gas bubble may be placed in the eyeto push the right now back in place with pneumatic retina pack see a gasbubble is injected into the vitreous pace inside the eye the bubble pushes the retinal tearclosed against the back wall the I with this procedure the patientmust maintain a certain head position

for several days after surgery the gas bubble willeventually disappear laser or cry or therapy is also added toseal the retinal tear back in place the track to me is a surgery where thevitreous gel that is pulling on the retina is removed from the I and replaced witha gas bubble overtime fluid naturally replaces thisgas bubble in select cases silicon oil is usedinstead of gas

Why Does Jupiter Have A Red Spot

Looks like Jupiter forgot to pack sunscreen… Hey guys, Amy here with you on DNews. Jupiter's Great Red Spot is arguably thegas giant's most notable feature. The spot is actually massive, swirling storm twiceas wide as the Earth that astronomers have been tracking since the 1800s. And even thoughits shrinking to the tune of 580 miles per year — astronomers suspect eddies feedinginto the storm are affecting its internal dynamics, turning it from an oval into a circle— it's still going strong. That giant storm, and the name Great Red Spotsuggests, is also, well, red. But not because

Jupiter is blushing. It's red because Jupiterhas a bit of a sun burn. Scientists used to think that the red in theGreat Red Spot was due to chemicals welling up in the region from below the visible cloudlayers. If this were the case, the whole storm would be red, not just the top. But new labtests suggest something different is going on. Jupiter's atmosphere is composed almostentirely of hydrogen and helium with a few traces of other gases thrown in. Though theseother gases only exist in a tiny percentage, their effects can be significant.

Two of the trace gases in Jupiter's atmosphereare ammonia and acetylene. In lab tests, scientists exposed these gases to ultraviolet light tosimulate sunlight interacting with these gases in Jupiter's atmosphere. The experimentproduced a reddish material and when the team compared this material's spectroscopic signatureto that of the Great Red Spot as observed by Cassini's Visible and Infrared MappingSpectrometer, they found it to be a pretty close match. The reddish material matcheda model of the Great Red Spot in which the redcolored material is confined to the uppermostregion of the giant storm. Scientists think that below this sunscorchedredness, the storm is actually pretty bland,

colourwise; lots of whites and grays. But it's not just composition of the cloudsthat accounts for the reddish hue in this big storm (and elsewhere around the planet).It's the altitude of those clouds. Jupiter's uppermost cloud layer is largely ammonia,and the storm that makes up the Great Red Spot is incredibly tall meaning those upperlayers of clouds get hit with a lot of sun light. An interesting question now is what combinationsof elements are responsible for the other colours in Jupiter's clouds; the planetis generally a mixed palette of oranges, browns

and reds. But other trace gases in Jupiter'satmosphere like ammonium hydrosulfide turned green when exposed to UV light in a lab. Don't you guys think the chemistry goingon in Jupiter's clouds is just awesomeé Let us know in the comments below or you cancatch me on Twitter as @astVintageSpace. And don't forget to subscribe for more DNewsevery day of the week.

Is Your Red The Same as My Red

Hey, Vsauce. Michael here. This appears blue. This appears yellow.And this appears green. Those of us with normal color vision can probably agree.But that doesn't change the fact that color is an illusion. Color, as we know it, does not exist in theoutside world, beyond us, like gravity or protons do. Instead, color is created insideour heads. Our brains convert a certain range of the electromagnetic spectrum into color.I can measure the wavelength of radiation, but I can't measure or observethe experience of a color inside your mind. So, how do I know that when you and me lookat a strawberry, and, in my brain, this perception

occurs, which I call quot;red,quot; that, in yourbrain, a perception like this doesn't occur, which you have, of course, also learned tocall red. We both call it red. We communicate effectively and walk away, never knowing justhow different each of our internal experiences really were. Of course, we already know that not everybodysees color in exactly the same way. One example would be color blindness. But we can diagnoseand discuss these differences because people with the conditions fail to see things that most of us can. Conceivably though, there could be ways ofseeing that we use that cause colors to look

differently in different people's minds, withoutaltering their performances on any tests we could come up with. Of course, if that were the case, wouldn'tsome people think other colors look better than othersé Or that some colors were morecomplimentary of othersé Well, yeah, but doesn't that already happené This matters because it shows how fundamentally,in terms of our perceptions, we are all alone in our minds. Let's say I met an alien from a far away solarsystem who, lucky enough, could speak English,

but had never, and could never, feel pain.I could explain to the alien that pain is sent through A delta and C fibers to the spinalchord. The alien could learn every single cell and pathway and process and chemicalinvolved in the feeling of pain. The alien could pass a biology exam about pain andbelieve that pain, to us, generally is a bad thing. But no matter how much he learned, the alienwould never actually feel pain. Philosophers call these ineffable, raw feelings quot;Qualia.quot;And our inability to connect physical phenomenon to these raw feelings, our inability to explainand share our own internal qualia is known

as the quot;Explanatory Gap.quot; This gap is confrontedwhen describing color to someone who's been blind their entire life. Tommy Edison has never been able to see.He has a YouTube channel where he describes what being blind is like. It's an amazing channel.In one tutorial he talks about colors and how strange and foreign of a concept it seemsto him. Sighted people try to explain, for instance, that red is quot;hot,quot; and blue is quot;cold.quot;But to someone who has never seen a single color, that just seems weird. And, as he explains,it has never caused him to finally see a color. Some philosophers, like Daniel Dennett, arguethat qualia may be private and ineffable simply

because of a failure of our own language,not because they are necessarily always going to be impossible to share. There may be an alien race that communicatesin a language that causes colors to appear in your brain without your retina having tobe involved at all. Or without you having to have ever needed to actually see the coloryourself. Perhaps, even in English, he says, given millions and billions of words usedin just the right way, it may be possible to adequately describe a color such that ablind person could see it for the first time. Or you could figure out that, onceandforall,yes or no, in fact, you and your friend

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