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
Photoshop Tutorial EYES How to Brighten Enhance Change Color
Hi. This is Marty from Blue Lightning TV.I'm going to show you a technique that will brighten and enhance the eyes' irises, as wellas change their colors. This works especially well for irises that are originally dark.Open a photo of a person you'd like to use. I downloaded this one from Shutterstock .Make a copy of it by pressing Ctrl + J on Windows or Cmd + J on a Mac. Let's zoom intoone of the eyes. To do this, press quot;zquot; on your keyboard to open your Zoom Tool and draga rectangle over the eye. To reposition it on your screen, hold down the Spacebar anddrag your image. Open your Brush Tool and make sure the Hardness is 0% and the Opacityand Flow are 100%. We'll adjust the size in
a moment. Make sure your foreground and backgroundcolors are black and white, respectively. If they aren't, press quot;Dquot; on your keyboard. the Quickmask icon, so we can brush in quickmasks over the irises. To reduce thesize of your brush, press the Left bracket key. Now. brush across the inside perimeterof the iris and make sure there are no holes in the quickmask. To quickly fill it in, openyour Paint Bucket Tool and leftclick inside the quickmask. Press quot;Bquot; to open back up yourBrush Tool and brush over the empty areas. Hold down the Spacebar to slide the imageover and brush over the inside perimeter of this iris. Press quot;Gquot; to open your Paint BucketTool and leftclick inside the quickmask.
Press quot;Bquot; again to open back your Brush Tooland brush in the rest. If you need to zoom out a little, so you can see both eyes onyour screen, press Ctrl or Cmd and the minus key. Press quot;Qquot; to make the quickmasks intoselections and then invert the selections by pressing Ctrl or Cmd + Shift + I. the Layer mask icon to make a layer mask of the selections, next to the active layer. the New Layer icon to make a new layer. Go to the Layer mask and hold down Alt orOption as you drag a copy of it next to the empty layer. on the empty layer to makeit active and change its Blend Mode to Overlay. Make sure white is the foreground color andmake the Opacity 50%. Increase your brush
size by pressing the right bracket key. Now,brush over the bottom half of the iris a few times to brighten it. Then, brush over thebottom half of the screen left iris to brighten it. As I toggle back and forth, you can seethat the color is brighter and and more vibrant. the thumbnail of Layer 1 to make itactive and go to Filter, Sharpen and Unsharp Mask. This will sharpen the details withinthe iris. l'll choose an Amount of 40%, the Radius is 10 pixels and the Threshold is 0 levels.Depending on the size, resolution and characteristics of your photo, experiment with these settingsto get just the right amount of sharpness.As I toggle back and forth, you can see the difference.After you apply Unsharp Mask, if you want
to make it look less sharp and have less contrast,just reduce its Opacity. Next, we'll change the eye color. Make the top layer active andclick the adjustment layer icon. Choose HueSaturation. Go to the Layer Mask and drag a copy of iton top of the white layer mask at the top. If you see this warning to replace it, clickYes. the icon next to the layer mask to make the adjustment layer active and dragthe Hue slider to the right and left to change the eye color. If you want to tone down thecolor, reduce the Saturation. I'll reduce mine to minus 46. To see your entire document, press Ctrl or Cmd + 0. This is Marty from Blue Lightning TV. Thanks for watching!