What are those floaty things in your eye Michael Mauser
Have you ever noticed something swimmingin your field of visioné It may look like a tiny wormor a transparent blob, and whenever you try to geta closer look, it disappears, only to reappearas soon as you shift your glance. But don't go rinsing out your eyes! What you are seeing is a common phenomenon known as a floater. The scientific name for these objectsis Muscae volitantes,
Latin for quot;flying flies,quot; and true to their name,they can be somewhat annoying. But they're not actually bugsor any kind of external objects at all. Rather, they exist inside your eyeball. Floaters may seem to be alive,since they move and change shape, but they are not alive. Floaters are tiny objectsthat cast shadows on the retina, the lightsensitive tissueat the back of your eye.
They might be bits of tissue, red blood cells, or clumps of protein. And because they're suspendedwithin the vitreous humor, the gellike liquidthat fills the inside of your eye, floaters drift alongwith your eye movements, and seem to bounce a littlewhen your eye stops. Floaters may be onlybarely distinguishable most of the time.
They become more visiblethe closer they are to the retina, just as holding your hand closerto a table with an overhead light will result in a moresharply defined shadow. And floaters are particularly noticeable when you are lookingat a uniform bright surface, like a blank computer screen, snow, or a clear sky,
where the consistency of the backgroundmakes them easier to distinguish. The brighter the light is,the more your pupil contracts. This has an effect similarto replacing a large diffuse light fixture with a single overhead light bulb, which also makesthe shadow appear clearer. There is another visual phenomenonthat looks similar to floaters but is in fact unrelated. If you've seen tiny dots of lightdarting about
when looking at a bright blue sky, you've experienced what is knownas the blue field entoptic phenomenon. In some ways,this is the opposite of seeing floaters. Here, you are not seeing shadows but little moving windowsletting light through to your retina. The windows are actually causedby white blood cells moving through the capillariesalong your retina's surface. These leukocytes can be so largethat they nearly fill a capillary
10 Most Invasive Parasites in the World
Here are the 10 most invasive parasites inthe world. Despite their size, these tiny terrorizers will leave you digging into yourown skin. Number 10: Blood FlukesScientifically known as schistosoma, blood flukes are one of the most common parasitesin the world, affecting hundreds of millions of people worldwide. They're a type of flatwormparasite that uses snails as an intermediate host by latching onto them then attachingthemselves onto human skin hatching eggs inside the human's bladder or intestine. Once inside your body, blood flukes can livea very long time. The initial symptoms of
itching rashes begin appearing in just afew days. After a couple months, diarrhea, coughing, headaches, fever will likely occur.Several years of leaving it untreated will then lead to the eggs spreading infectingorgans such as the lungs, liver, bladder. They may even affect the spinal cord and brain,thus causing paralysis seizures. This parasite is found primarily in Africa,the Middle East, South America, parts of South Asia. Children are at especially highrisk as they can develop learning disabilities suffer from malnutrition. As such, the WorldHealth Organization considers blood flukes to be among the most socioeconomically damagingparasites in the world.
Number 9: The Horsehair WormAlso known as â€œgordian wormsâ€� or â€œnematomorpha,â€� the horsehair worm is a parasitic worm foundin watery areas such as pools, creeks, puddles. Scientists believe this parasite is comprisedof anywhere between 350 to 2,000 different subspecies. While horsehair worms do not pose any directthreat to humans, they do pose an interestingly unique specific danger towards crickets.They hatch as larvae at the bottom of a creek, stream, or puddle, then wait to be eaten bya cricket. Once consumed, the horsehair worm will navigate its way into the cricket's bodycavity, where it absorbs nutrients from the
cricket. As soon as this parasite breaks free,it coaxes the cricket into drowning itself so the horsehair worm can fully emerge. Afterleaving the dead cricket, it then finds a mate, who helps it reproduce by laying eggs.The male worm dies the deadly cycle continues. Number 8: RoundwormsRoundworms are parasites responsible for causing a disease in humans known as filariasis. Carriedby flies mosquitos, they infect one's bloodstream with the potential to reach the lymphaticsystem, causing the body parts (such as your limbs genitals) to swell up well beyondtheir normal size. The skin will also become thick painful as a result of infection.
Roundworminduced filariasis affects closeto 1 billion people in 80 countries throughout the world. Fortunately, this condition istreatable through the use of oral drugs such as Diethylcarbamazine, which kills off theinfection prevents further transmission to other people. Number 7: The Tsetse FlyFound in Africa, the tsetse fly is one of the main causes of trypanosomiasis, or Africansleeping sickness. This parasitic disease affects roughly 10 million people is mostcommon in more rural areas. Symptoms include headaches, fever, joint pain,poor coordination, confusion, muscle weakness,
paralysis of the limbs, trouble sleeping.It can eventually prove fatal if treatment is not sought, causing death due to eventualorgan failure. While the disease has been present in Africafor thousands of years, the death rate has decreased in recent years due to advancesin modern medicine. In 1990, for example, about 34,000 people died from African sleepingsickness, which is close to four times higher than its current death rate of 9,000 peopleper year. Number 6: The Emerald Jewel WaspAlso known as the â€œemerald cockroach,â€� the emerald jewel is known for paralyzingcockroaches in order to use them for their