Search results
Results from the WOW.Com Content Network
Microsurgery is a general term for surgery requiring an operating microscope.The most obvious developments have been procedures developed to allow anastomosis of successively smaller blood vessels and nerves (typically 1 mm in diameter) which have allowed transfer of tissue from one part of the body to another and re-attachment of severed parts.
In 1991, J. A. Singer described the "frown" incision as a way to minimise asigmatism when using a rigid IOL. [1] In 1999, S. Ruit et al. described a technique using a 6.5–7 mm temporal scleral tunnel with a straight incision 2 mm from the limbus. A V-shaped capsulorhexis was followed by hydrodissection, and the nucleus was delivered by ...
A Foldscope is an optical microscope that can be assembled from a punched sheet of cardstock, a spherical glass lens, a light emitting diode (LED) and a diffuser panel, along with a watch battery that powers the LED. [ 4] Once assembled, the Foldscope is about the size of a bookmark. The Foldscope weighs 8 grams [citation needed] and comes in a ...
A travelling microscope is an instrument for measuring length with a resolution typically in the order of 0.01mm. The precision is such that better-quality instruments have measuring scales made from Invar to avoid misreadings due to thermal effects. The instrument comprises a microscope mounted on two rails fixed to, or part of a very rigid bed.
Optical microscope. The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.
Digital microscope. An insect observed with a digital microscope. Entomologist using a digital microscope to magnify a miniature insect. A digital microscope is a variation of a traditional optical microscope that uses optics and a digital camera to output an image to a monitor, sometimes by means of software running on a computer.
Instrument myopia is the tendency of a person with normal eyes to focus them too close when looking into an optical instrument at its image. [ 1] Optical instruments include viewfinders, telescopes, binoculars, and microscopes. [ 1][ 2] For example, through a microscope, a person might focus the eyes to one meter distance although it can ...
Photon scanning microscopy. The operation of a photon scanning tunneling microscope (PSTM) is analogous to the operation of an electron scanning tunneling microscope, with the primary distinction being that PSTM involves tunneling of photons instead of electrons from the sample surface to the probe tip. A beam of light is focused on a prism at ...