extracapsular cataract extraction - ορισμός. Τι είναι το extracapsular cataract extraction
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Τι (ποιος) είναι extracapsular cataract extraction - ορισμός

OCULAR SURGERY PERFORMED TO REMOVE CATARACTS
Intracapsular cataract extraction; Extracapsular cataract extraction; Cataract extraction; Microincision cataract surgery; Advanced Cataract Surgery; Posterior capsular opacification; Laser Cataract Surgery; Laser cataract surgery; Femtosecond laser for cataract surgery; Cataract operation; Lens replacement surgery; Posterior capsule opacification; Posterior capsule opacity; Posterior capsular opacity; Cataract surgeries
  • The IOL injector is inserted in the incision and aimed at the capsule
  • The rolled up lens is ejected from the nozzle int the capsule
  • The lens unfolds in place
  • Beer-type cataract knife and needle, cased, Paris, 1820-1866
  • alt=Photo of a left eye with widely dilated pupil. a small red spot on the lower distal side is all that can be seen of the incision.
  • Cataract surgery in Bedele, Ethiopia
  • Magnified view of a cataract seen on examination with a [[slit lamp]]
  • A cataract surgery. ''Dictionnaire Universel de Médecine'' (1746–1748).
  • Bilateral cataracts in an infant due to [[congenital rubella syndrome]]
  • "Couching for cataract"; [[Wellcome Collection]] illustration of Indian doctors performing the technique.
  • alt=A surgical team is gathered around the patient in an operating theatre. the surgeon is looking through a surgical microscope suspended above the patient's eye.
  • alt=A one-piece intraocular lens resting on a fingertip for scale. The lens is about a quarter of the finger's width in diameter and has flexible haptic loops on opposite sides, which roughly double the length.
  • alt=A small plastic disposable syringe with a lens insertion nozzle attached. The nozzle tapers to a small tip through which the foldable lens is expressed into the posterior capsule, and can fit into a 2.8mm wide incision.
  • alt=Front and side views of a highly opacified extracted cataract. It is uniformly yellow in colour.
  • Section diagram of the eye, showing intraocular lens implanted in the posterior lens capsule behind the iris
  • [[Slit lamp]] photo of IOL showing Posterior capsular opacification (PCO) visible a few months after implantation of intraocular lens in eye, seen on retroillumination
  • Cataract operation in Sao Paulo, Brazil
  • A shield or patch may be needed for a few days, mainly to protect from physical impact and contamination

Relationship extraction         
TYPE OF TEXT MINING
Relationship Extraction; Relation extraction
A relationship extraction task requires the detection and classification of semantic relationship mentions within a set of artifacts, typically from text or XML documents. The task is very similar to that of information extraction (IE), but IE additionally requires the removal of repeated relations (disambiguation) and generally refers to the extraction of many different relationships.
Terminology extraction         
AN AUTOMATIC METHOD OF ANALYSING TEXT IN ORDER TO IDENTIFY PHRASES WHICH FULFIL THE CRITERIA FOR TERMS
Term extraction; Term recognition
Terminology extraction (also known as term extraction, glossary extraction, term recognition, or terminology mining) is a subtask of information extraction. The goal of terminology extraction is to automatically extract relevant terms from a given corpus.
Liquid–liquid extraction         
  • 4 stage battery of mixer-settlers for counter-current extraction.
  • Phase separation during a laboratory scale LLE. The upper organic ether solution of [[MTBE]] is being extracted with the lower alkaline [[aqueous]] sodium bicarbonate solution to remove [[benzoic acid]] as the [[benzoate]] anion, leaving a non-acidic organic, [[benzil]], (yellow in color) in the organic phase.
  • Solvent extraction.
METHOD TO SEPARATE COMPOUNDS BASED ON THEIR RELATIVE SOLUBILITIES IN TWO DIFFERENT IMMISCIBLE LIQUIDS, USUALLY WATER AND AN ORGANIC SOLVENT; EXTRACTION OF A SUBSTANCE FROM ONE LIQUID INTO ANOTHER LIQUID PHASE
Solvent extraction; Solvent Extraction; Two-phase liquid extraction; Two Phase Liquid Extraction; Two phase liquid extraction; Liquid liquid extraction; Liquid-liquid extraction; Countercurrent solvent extraction
Liquid–liquid extraction (LLE), also known as solvent extraction and partitioning, is a method to separate compounds or metal complexes, based on their relative solubilities in two different immiscible liquids, usually water (polar) and an organic solvent (non-polar). There is a net transfer of one or more species from one liquid into another liquid phase, generally from aqueous to organic.

Βικιπαίδεια

Cataract surgery

Cataract surgery, also called lens replacement surgery, is the removal of the natural lens of the eye (also called "crystalline lens") that has developed an opacification, which is referred to as a cataract, and usually its replacement with an artificial intraocular lens.

Metabolic changes of the crystalline lens fibers over time lead to the development of the cataract, causing impairment or loss of vision. Some infants are born with congenital cataracts, and certain environmental factors may also lead to cataract formation. Early symptoms may include strong glare from lights and small light sources at night, and reduced visual acuity at low light levels.

During cataract surgery, the cloudy natural lens is removed, either by emulsification in place or by cutting it out. An artificial intraocular lens (IOL) is usually implanted in its place to restore useful focus. Cataract surgery is generally performed by an ophthalmologist in an out-patient setting at a surgical center or hospital. Local anaesthesia is normally used, and the procedure is usually quick and causes little or no pain and minor discomfort to the patient. Recovery sufficient for most daily activities usually takes place in a matter of days, and full recovery about a month.

Well over 90% of operations are successful in restoring useful vision, with a low complication rate. Day care, high volume, minimally invasive, small incision phacoemulsification with quick post-operative recovery has become the standard of care in cataract surgery all over the developed world. Manual small incision cataract surgery (MSICS) is popular in the developing world, as it is considerably more economical in time, capital equipment and consumables, while providing comparable results. Both procedures are low risk for serious complications.