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 Do I Get Dark Circles Under My Eyes
Are people constantly asking if you got enoughsleep last nighté Even if you snoozed for a solid 8 hoursé Well look alive! Today we're talking about the science behindthose dark circles under your eyes, and all the things that might cause them â€“ tirednessincluded. There's a simple reason those eye bags lookall purpleish: just check out your wrists. If you can see the veins under your skin,they might look blue, even though the blood inside them is red.
That's because of the way that differentwavelengths of light interact with your skin and blood vessels, so more blue light is reflectedback into our eyes. The area under your eyes appears darker becausethe skin is thinner there, and doesn't have much fat. That means that more tiny blood vessels canshow through. People with darker skin have more of a pigmentcalled melanin in their skin. And sometimes they produce extra melanin belowtheir eyes â€“ a condition called periorbital hyperpigmentation.
So based on the thickness of your skin andgenetics, you might be stuck with any dark circles you're born with. But there are things you can do to make themworse. People usually blame their dark circles ontiredness, and there probably is a correlation. See, when you're tired or stressed, yourbody produces more of a hormone called cortisol to get more glucose into your bloodstreamto give you the energy to stay awake. Over time, cortisol constricts some bloodvessels and dilates others, so it's possible that the vessels under your eyes are a littlebigger, which means darker eye circles.
Another culprit is allergies, or any sortof congestion. Allergic reactions can trigger your immunesystem to release these compounds called histamines, which causes blood vessels to dilate. Plus, itching and rubbing your eyes can makeany puffiness worse. So besides the dark circles from the builtupblood and inflammation, puffy eye bags can mean dark shadows. Not to mention, things like ultraviolet radiationin sunlight, which can damage to DNA in skin cells, which can kill them off.
And unfortunately, as we get older, we loseeven more fat underneath our skin and it gets thinner. Which means more, darker circles. So the best you can do: wear some sunscreen,take your allergy medicine, get a good night's rest, and try not to sweat the small stuff. Thanks to Patreon patrons Phillip HollierDayand Zul for asking, and thanks to all our patrons who keep these answers coming. If you'd like to submit a question to beanswered, you can go to Patreon SciShow,