can some one tell me why a surgeon use a microscope , how a surgical microscope works , why it used plz.
210273
Surgical microscopes have been around since the 1920's.  They allow vision of very tiny details on organ structure that previously were unknown.  Some procedures can only be preformed using a surgical microscope.\n\nNewer models also allow residents and other doctors a view that was previously unknown.  A digital image can also be sent over great distance for consultation on rare procedures.\n\nSee the sites below of additional details.
553567
Not if the surgeon is experienced.  Correction needs professional advice!
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Hopefully the PA has worked in general surgery and has scrubbed on several appy's, has a good grasp of anatomy, and knows how to operate and work the anesthesia at the same time. I won't even mention having sterile instruments and antibiotics...\n\nNever met an NP who has scrubbed in the OR. However I've met several PA's who often scrub.
624159
actually you could develop keloids anywhere\nthe cuts made by the surgeon usually are hidden so no scar keloid or not should be visible\nif you are thinking about getting a surgery check for the credentials of your surgeon and get so information about him before\nIf he is an ethical an professional surgeon as most of them are he will tell you if you are a candidate for surgery and what choices will you have to get the optimum results.\nRemember saving a few bucks can cost you all your happiness
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1Simple optical microscope\n\n2Compound optical microscope\n\n3 stereo or dissecting microscope \n\n4Electron microscopes\n\n5Scanning probe microscope\n\n6Acoustic microscopes\n\nhistory:\n\nIt is impossible to say who invented the compound microscope. Dutch spectacle-makers Hans Janssen and his son Zacharias Janssen are often said to have invented the first compound microscope in 1590, but this was a declaration by Zacharias Janssen himself halfway through the 17th century. The date is certainly not likely, as it has been shown that Zacharias Janssen actually was born around 1590. Another favorite for the title of 'inventor of the microscope' was Galileo Galilei. He developed an occhiolino or compound microscope with a convex and a concave lens in 1609. Galilei´s microscope was celebrated in the ´Lynx academy´ founded by Federico Cesi in 1603. Francesco Stelluti´s drawing of three bees were part of pope Urban VIII´s seal, and count as the first microscopic figure published (see Stephen Jay Gould, The Lying stones of Marrakech, 2000). Christiaan Huygens, another Dutchman, developed a simple 2-lens ocular system in the late 1600's that was achromatically corrected and therefore a huge step forward in microscope development. The Huygens ocular is still being produced to this day, but suffers from a small field size, and the eye relief is uncomfortably close compared to modern widefield oculars.\n\nAnton van Leeuwenhoek (1632-1723) is generally credited with bringing the microscope to the attention of biologists, even though simple magnifying lenses were already being produced in the 1500's, and the magnifying principle of water-filled glass bowls had been described by the Romans (Seneca). Van Leeuwenhoek's home-made microscopes were actually very small simple instruments with a single very strong lens. They were awkard in use but enabled van Leeuwenhoek to see highly detailed images, mainly because a single lens does not suffer the lens faults that are doubled or even multiplied when using several lenses in combination as in a compound microscope. It actually took about 150 years of optical development before the compound microscope was able to provide the same quality image as van Leeuwenhoek's simple microscopes. So although he was certainly a great microscopist, van Leeuwenhoek is, contrary to widespread claims, certainly not the inventor of the microscope.
43871
I also had the surgery about 6 years ago now, so I imagine that technology has greatly improved since then. I really didn't experience any pain with the procedure, but it was a little weird. It worked great and is still working. Usually they tell you you can't do certain things for like a month afterwards while your eye heals up completely, but I suppose it depends on what type of surgery you are getting (they have different kinds now.) I'd say go for it. It's great not to have to wear glasses or contacts.
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Intra-Operative Monitoring Technologist assist a surgeon in maintaining the Central Nervous System, by shocking the living hell out of a patient while they are asleep and making sure that stimulus gets to the brain! Occasionally passive measures of EEG, EMG, etc may be used. The boards for such a position qualify you to use Certified Neurophysiological Intra-Operative Monitoring Technologist credentials (CNIM). There are just under 1000 such technologists world wide. Such as \n\nMichael Kepford, CNIM  904
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They are M.D.'s with advanced training in radiology.Do you think that they just take and read xrays or something? If you do then you don't understand all the things that radiologists do.
246494
The Dr. can shine a light in the eye, the instument used is called a retinoscope. They can tell what power the child needs by the way the light reflects off the retina and bounce back out with a specific light pattern. Then the Dr. can neutralize the power with the same instument by changing the power settings on the retinoscope. Usually they will dialate the child's pupils for the exam.
14924
A microscope (Greek: micron = small and scopos = aim) is an instrument for viewing objects that are too small to be seen by the naked or unaided eye. The science of investigating small objects using such an instrument is called microscopy, and the term microscopic means minute or very small, not easily visible with the unaided eye. In other words, requiring a microscope to examine.\n\nThe most common type of microscope—and the first to be invented—is the optical microscope. This is an optical instrument containing one or more lenses that produce an enlarged image of an object placed in the focal plane of the lens(es).\nSimple optical microscope\nA simple microscope, as opposed to a standard compound microscope (see below) with multiple lenses, is a microscope that uses only one lens for magnification. Van Leeuwenhoek's microscopes consisted of a single, small, convex lens mounted on a plate with a mechanism to hold the material to be examined (the sample or specimen). This use of a single, convex lens to magnify objects for viewing is still found in the magnifying glass, the hand-lens, and the loupe.\n\n[edit]\nCompound optical microscope\nThe diagrams below show compound microscopes. In its simplest form—as used by Robert Hooke, for example—the compound microscope would have a single glass lens of short focal length for the objective, and another single glass lens for the eyepiece or ocular. Modern microscopes of this kind are usually more complex, with multiple lens components in both objective and eyepiece assemblies. These multi-component lenses are designed to reduce aberrations, particularly chromatic aberration and spherical aberration. In modern microscopes the mirror is replaced by a lamp unit providing stable, controllable illumination.\n\n \nBasic microscope main elements ocular lens or eye-piece \nobjective turret, or nosepiece \nobjective lenses \ncoarse adjustment knob \nfine adjustment knob \nobject holder or stage \nmirror \ndiaphragm and condenser \n \nStereo microscope\nThe stereo, binocular or dissecting microscope is designed differently from the diagrams above, and serves a different purpose. It uses two eyepieces (or sometimes two complete microscopes) to provide slightly different viewing angles to the left and right eyes. In this way it produces a three-dimensional (3-D) visualisation of the sample being examined.\n\n \nScientist using a stereo microscope outfitted with a digital imaging pick-upThe stereo microscope is often used to study the surfaces of solid specimens or to carry out close work such as sorting, dissection, microsurgery, watch-making, small circuit board manufacture or inspection, and the like.\n\nGreat working distance and depth of field here are important qualities for this type of microscope. Both qualities are inversely correlated with resolution: the higher the resolution (i.e., magnification), the smaller the depth of field and working distance. A stereo microscope has a useful magnification up to 100×. The resolution is maximally in the order of an average 10× objective in a compound microscope, and often much lower.\n\n[edit]\nSpecial designs\nOther types of optical microscope include:\n\nthe inverted microscope for studying samples from below; useful for cell cultures in liquid; \nthe student microscope designed for low cost, durability, and ease of use; and \nthe research microscope which is an expensive tool with many enhancements. \nthe petrographic microscope whose design usually includes a polarizing filter, rotating stage and gypsum plate to facilitate the study of minerals or other crystalline materials whose optical properties can vary with orientation. \n\n\n\nThe Parts of the Microscope\n-----------------------------------\nThere are eleven main parts to a microscope. At the top of the microscope there is a cylinder that is called the ocular or eyepiece. That is where you look to see the magnified image. The ocular is connected to the body tube that lea
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you should get a compound scope for that\n\ntry carolina Biological supply\n\nget a dissecting scope too if you can afford it
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Yep, we all do. First, there are little translucent cellular fragments floating around that look like some sort of bacteria under a microscope, and then there are the patterns or 'light shows' that appear with closed eyed, especially when you press on them a little.  There's a term for it... Ahgh! I can't remember. They are like phototronics, no phototechnics? or something? Ask your biology teacher. But everyone can see them. Maybe even blind people? Who knows. But it is definately a function of your eyes componants.
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For no good reason.\n\nFor example, suppose you worked in a laboratory.  Would you actually need to know what any of the instruments were for or how they functioned?  \n\nOf course you wouldn't!  You could just grab any random object, fill it with some sort of fluid and add some other stuff to it, and put it in a machine.  Then take it out a while later, and use your psychic powers to tell you the result.\n\nWhen asked to report the results of your work, you could say, "Bad news, Mrs. Johnson has AIDS", or "I've found the cure for leprosy!", or whatever else came to mind.\n\nSo, as you can see, basic familiarity with laboratory instruments is totally unnecessary for laboratory workers.
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First of all the scrubbing is to eliminate all germs on hands and there is a certain way of washing the hands making sure all parts of the hands are scrubbed. Then the gloves are a protection from the bodily fluids they may come across.The gloves are a protection also from germs, and if the glove gets ripped in any way during surgery the hands are sanitized enough to not infect the patient until more gloves are put on. The mask and robe are sterile so no germs are transferred to patient. And also the scrubs they might be wearing may have germs on them to so the robe is a protection from that. The mask is so they don't breathe or sneeze on the patient.
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The new machines account for subtle movements while the operation is being performed, so it's safer than before. I've heard that during the first few weeks you have have some side effects like halos around lights during the night, but they go away. \n\nI would have done it, but my retina is too thin, and it would be too dangerous.
177514
It Works on the Concepts of the Refraction, means the object that we see in the Instrument is the Enlarged image of the Object that is under examination. and i think U will be through with this topic.
169926
Electron microscopes are used to magnify details up to 500,000 times their normal size. However, due to diffraction, even the best optical microscope (the kind you are probably used to using) is limited to a resolution of 0.2 micrometers. (One micrometer is 0.000001 meter.)