About: Capsulorhexis

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Capsulorhexis or capsulorrhexis, also known as continuous curvilinear capsulorhexis (CCC), is a technique pioneered by Howard Gimbel used to remove the capsule of the lens from the eye during cataract surgery by shear and stretch forces. It generally refers to removal of a part of the anterior lens capsule, but in situations like a developmental cataract a part of the posterior capsule is also removed by a similar technique.

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rdf:type	topical concept yago:Abstraction100002137 yago:Act100030358 yago:Engagement101239064 yago:Event100029378 yago:GroupAction101080366 yago:Intervention101240210 yago:PsychologicalFeature100023100 yago:YagoPermanentlyLocatedEntity
rdfs:label	Capsulorhexis (en)
rdfs:comment	Capsulorhexis or capsulorrhexis, also known as continuous curvilinear capsulorhexis (CCC), is a technique pioneered by Howard Gimbel used to remove the capsule of the lens from the eye during cataract surgery by shear and stretch forces. It generally refers to removal of a part of the anterior lens capsule, but in situations like a developmental cataract a part of the posterior capsule is also removed by a similar technique. (en)
name	Capsulorhexis (en)
dcterms:subject	Eye surgery Human eye anatomy Lenses
Wikipage page ID	11237534 (xsd:integer)
Wikipage revision ID	1071856236 (xsd:integer)
Link from a Wikipage to another Wikipage	Cataract Cataract surgery Howard Gimbel Vitrectomy Vitreous humour Surgery Eye surgery Capsule of lens Forceps Lens (anatomy) Human eye anatomy Lenses Nd:YAG laser Human eye Shear stress Inflammatory response
sameAs	Capsulorhexis Capsulorhexis Capsulorhexis
dbp:wikiPageUsesTemplate	dbt:Infobox_interventions dbt:Reflist dbt:Eye_surgery dbt:ICD9proc dbt:More_medical_citations_needed
MeshID	D019923 (en)
synonyms	continuous circular capsulorrhexis/ capsulorhexis/ capsulotomy/ capsulectomy (en) capsulorrhexis; (en) continuous curvilinear capsulorrhexis/ capsulorhexis/ capsulotomy/ capsulectomy; (en)
has abstract	Capsulorhexis or capsulorrhexis, also known as continuous curvilinear capsulorhexis (CCC), is a technique pioneered by Howard Gimbel used to remove the capsule of the lens from the eye during cataract surgery by shear and stretch forces. It generally refers to removal of a part of the anterior lens capsule, but in situations like a developmental cataract a part of the posterior capsule is also removed by a similar technique. In order to remove a cataract with modern techniques, the capsule of the lens must be opened. In older style surgery (intracapsular cataract extraction), the whole lens and capsule was removed. This was done to prevent the inflammatory response to leftover lens material. Since it was all removed en-bloc, there was no residual. With modern techniques, however, the removal of practically all the material can be achieved while leaving the intact capsule. This is important since it provides a barrier between the front and back of the eye, and prevents the vitreous from moving forwards. In addition, this allows the artificial intraocular lens an ideal place to be located in the eye, away from contact with other structures yet solidly held in place. Prior to the advent of the CCC, a "can opener" approach was used, with a small bent needle making small incisions around the anterior surface of the lens, forming a somewhat continuous hole that the lens could be removed through. However, any of these ragged edges could promote a tear that could proceed outwards. A CCC when done correctly, does not have any edges, and any forces applied to the capsule during surgery are distributed and do not result in a tear. The usual method is to use the same bent needle to begin a tear in the capsule, and then guide the edge around the anterior surface with either the same needle or Utratas forceps. There are advantages and disadvantages to both approaches, and most surgeons will use both instruments as the situation requires. As noted in children, often an anterior and posterior capsulorhexis is made, since the posterior capsule becomes cloudy even more commonly in children than adults. Since a simple office procedure using a Nd:YAG laser commonly performed on adults is difficult with a child (since they cannot sit still at the machine), it is better to deal with the posterior capsule at the time of surgery. Since the vitreous in children is much more formed, the loss of vitreous is less common (since as a solid it stays put), though often an anterior vitrectomy is still performed. (en)
gold:hypernym	Technique
prov:wasDerivedFrom	wikipedia-en:Capsulorhexis?oldid=1071856236&ns=0
page length (characters) of wiki page	3486 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Capsulorhexis
is Link from a Wikipage to another Wikipage of	Cataract Cataract surgery Howard Gimbel CCC List of MeSH codes (E04) Intraocular lens Indocyanine green
is known for of	Howard Gimbel
is foaf:primaryTopic of	wikipedia-en:Capsulorhexis

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