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
The Different Types of Brown Spots DermTV Epi 474
Brown spots and blotches on the face are themost common facial discoloration and they can occur anywhere on your skin. There are many different types, and most areeasy to fix, however some prove to be challenging to improve and others even defy many treatments. What about yoursé Stay tuned! No matter what your ancestry or racial background, virtually everyone is susceptible to varyingdegrees of tan or brown discoloration
anywhere and everywhere on their skin. A previous DermTV episode discussed age spots,also called sun or liver spots, but today I'll put into perspective the entirespectrum of brown discoloration. And to simplify it, I'm not talking aboutmoles or beauty marks today. In short, all brown discolorations are causedby your pigment cells, called melanocyes, making too much of yournormal brown pigment, which is called melanin. Those cells normally make melanin all thetime and that melanin is one of four pigments
that are responsible for determining yournormal skin color. But when the melanocytes make too much melainin, you get brown discoloration. And the reasonthat happens is usually in response to some type of an injury to theskin. When the brown discoloration is in responseto an acute injury like a cooking burn, a scratch, a pimple,a picked pimple, or a sunburn, it's called post inflammatory hyper pigmentation,or PIH for short. Post means after. Inflammatory means inflammation,
which occurs as a response to all injuries, and hyper pigmentation means too much melaninpigment which of course is brown. So with most of these injuries the area thatdarkens or turns brown is the same area that was injuredâ€¦ round spots from pimples, linear areas fromburns from the edge of a pan or pot or the shape of the scratch, and of courseyour tan after a sunburn occurs everywhere you were sun burned. This typeof PIH is easy to treat.
Age or sun spots which come very graduallyover years and are round but often with irregular borders, are also from a skin injury but in this case it's chronic and repeatedUV injury over many years. It's the same bad UV rays that cause prematureaging and skin cancer. These spots are easy to treat. The last brown discoloration occurs in women and is blotchy irregular tan and brown patches
that most often occurs on the forhead, cheeks,upper lip and chin. It's called melasma, or chloasma, but if you're pregnant then it's calledthe mask of pregnancy. This discoloration is very tough to treat. The bottom line is, if you have brown discoloration, as you can now see, it's usually as a resultof skin injuries. And now that you know the types, check out the DermTV episodes on each to learnabout treatment.