Q:what is pigment dispersion syndrome?

Pigment dispersion syndrome (PDS) is an affliction of the eye that, if left untreated, can lead a form of glaucoma known as pigmentary glaucoma. It takes place when pigment cells slough off from the back of the iris and float around in the aqueous humor. This is not what causes problems; however, if the pigment flakes clog the trabecular meshwork, preventing the liquids in the eye from draining, pressure can build up inside the eye. This pressure can cause permanent damage to the optic nerve. This condition is rare, but occurs most often in Caucasians, particularly men, and the age of onset is relatively low: mid 20s to 40s. Most sufferers are nearsighted. There is no cure as of yet, but PDS can be managed with eye drops or treated with simple surgeries. If caught early and treated, chances of glaucoma are greatly reduced. Sufferers are often advised not to engage in high-impact sports such as long-distance running or martial arts, as strong impacts can cause more pigment cells to slough off

Q:Can you take any powder, grind it finely, and mix linseed oil into it to make oil paints to make paint? Or do paint pigments have to have special characteristics? Thanks!!

Pigments are specific minerals found in rocks. Then they are ground down and mixed with the binders for oil, acrylic, and watercolor paints. You can take art classes that teach you how to make your own paints. I have a cousin who hikes to find her own pigments and makes all the colors she paint with. If you'd like something less labor-intensive, you can buy the pigments you want from lots of art stores these days. They can be added to pre-existing colors to enhance them, or you can start from scratch to formulate your own colors. The bottles i've seen are around 8 ounces, and cost about $50. You will likely find books in the library and articles online that will help you learn to make your own pigments.

Q:is it the ink on regular printers?

Some printers use only pigmented ink. Others use dye based and then some use a combination of both. Dye based ink is basically water based with a dye added to it. Pigmented ink has a solvent base with dye added. Pigment ink and dye based ink have both advantages and disadvantages. Dye based ink have better colors but pigment are more water and fade resistant. Dye based inks are therefore better for photos. I have a printer that has 4 dye based inks and a black pigment ink. Mine uses the dye based black and colours for pictures and the pigmented black is used for text. So the answer is yes. Pigmented ink is used in some regular printers.

Q:I am 33 years old and have pigment dispersion syndrome. My new doctor prescribed laser treatment, to prevent eye damage and potential sight loss. A previous doctor said to try drops, but only if my eye pressure became high-risk. Has anyone in Yahoo's network been in my situation and if so, what did you do?

Rubbing eyes probably does not relate to pigmentary dispersion syndrome. While pigmantary dispersion syndrome can cause pigmentary glaucoma. Most glaucoma is not pigmantary glaucoma.

Q:Does anyone know its chemical formula or constituents ?

Epona's answer is extremely sturdy. in case you seem up colour institutions you will locate diverse institutions reckoning on who has written them and what structures they're drawing from. yet you'll be able to desire to continually use institutions that make experience to you. case in point - you will in all probability locate that easy blue is the colour linked with peace. yet reckoning on what form of peace you're going for you may go with a diverse colour. possibly purple if that is for peace in the kin or with acquaintances, pink if that is religious in nature, or eco-friendly if that is physique appropriate. The institutions I genuinely tend to circulate with are: pink - lust, action, means, braveness Orange - creativity, braveness, means (extra innovative form than the pink). Yellow - issues bearing on the concepts (like possibly you have have been given a attempt to earnings for) or psychological suggestion. easy eco-friendly - prosperity darkish eco-friendly - therapeutic easy Blue - peace, tranquility darkish Blue - desires, on occasion suggestion pink - issues coping with the religious White - purification and can be a stand in for extremely just about something Black - liberating negativity, banishing purple - love, friendship, kin i do no longer think there is any colour that would desire to be prevented. yet I often use a diverse affiliation than what i've got listed. And my institutions are in user-friendly terms valid for yet somebody else in the event that they make experience to them. i exploit white candles maximum many times as I continually have them handy and that they might continually be spiced up with diverse oils this is something I do very often.

Q:ive been watching a lot of makeup videos on youtube and a lot of the girls use mac pigments. what exactly are they and how are they different from regular eyeshadow? are they easier or more difficult to use?

Pigment okorder /....

Q:thinking about the main role of pigments in photosynthesis...? explain how the pigments in colored objects suc?

photosynthetic pigment or antenna pigment is a pigment that is present in chloroplasts or photosynthetic bacteria and captures the light energy necessary for photosynthesis. Green plants have five closely-related photosynthetic pigments (in order of increasing polarity): Carotene - an orange pigment Xanthophyll - a yellow pigment Chlorophyll a - a blue-green pigment Chlorophyll b - a yellow-green pigment Phaeophytin a[1] - a gray-brown pigment Phaeophytin b[1] - a yellow-brown pigment Chlorophyll a is the most common of the six, present in every plant that performs photosynthesis. The reason that there are so many pigments is that each absorbs light more efficiently in a different part of the spectrum. Chlorophyll a absorbs well at a wavelength of about 400-450 nm and at 650-700 nm; chlorophyll b at 450-500 nm and at 600-650 nm. Xanthophyll absorbs well at 400-530 nm. However, none of the pigments absorbs well in the green-yellow region, which is responsible for the abundant green we see in nature.

Q:explain how the pigments in colored objects such as clothes differ from plant pigments

Green pigments absorb light in the red and blue parts of the spectrum and reflect the green back to our eyes. The major functional difference between chlorophyll and say jade green is that only the chlorophyll in living systems can transfer the absorbed light energy and the excited electron to another molecule, thus trapping it. In biology, pigment is any material resulting in color in plant or animal cells which is the result of selective absorption. Some biological material has so-called structural color, which is the result of selective reflection or iridescence, usually done with multilayer structures. Unlike structural color, pigment color is the same for all viewing angles. Nearly all types of cells, such as skin, eyes, fur and hair contain pigment. Butterfly wings typically contain structural color, although many of them contain pigment as well. Creatures that have deficient pigmentation are called albinos. In the coloring of paint, ink, plastic, fabric and other material, a pigment is a dry colorant, usually an insoluble powder. There are both natural and synthetic pigments, both organic and inorganic ones. Pigments work by selectively absorbing some parts of the visible spectrum (see light) whilst reflecting others. A distinction is usually made between a pigment, which is insoluble, and a dye, which is either a liquid, or is soluble. There is no well-defined dividing line between pigments and dyes, however, and some coloring agents are used as both pigments and dyes. In some cases, a pigment will be made by precipitating a soluble dye with a metallic salt. The resulting pigment is called a lake.

Q:HW HELP THIS IS COMLPCATED

Pigments in plants color every part: red rose, orange carrot, purple plums. These pigments are not photosynthetic their function varies with location in the plant and the season. Chlorophylls are the primary photosynthetic pigment class found in chloroplasts. Flavonoids like the anthocyanins provide red, blue, purple, or magenta color to flowers and fruits. Color serves to attract pollinators and seed distributors. Recent literature reports some 550 different anthocyanins.

Q:what roles do pigments have in energy transfer?

Pigments okorder /... When a photon of just the right amount of energy strikes an electron resonating in the pigment, the electron can absorb the photon and get promoted to a higher quantum level. The photon must have just the exact amount of energy to boost the electron from its current level to its new level or it cannot be absorbed. If the incoming photon is just right to promote an electron, in that pigment, the newly energized electron resonates along the bonds at the higher energy level where it can pass to the photosynthetic reaction center from the pigment array, to split water and take back an electron. Meanwhile the chlorophyll's electron passes to the electron transport chain to begin oxidative phophorylation.