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词条 Draft:Laserphaco
释义

  1. References

{{AFC submission|||u=VeritasB360|ns=118|ts=20190223004922}} {{AFC comment|1=Missing Inline citations Gpkp (utc) 17:02, 10 March 2019 (UTC)}}{{AFC comment|1=Does.not come up as copyvio. I wish there were a couple more good sources. I don't like to approve pages with only one source Legacypac (talk) 02:51, 23 February 2019 (UTC)}}

Laserphaco is a technique for cataract surgery in which a fiberoptic device (known as laserphaco probe) delivers laser pulses, irrigation and aspiration to the cataract lens inside the eye.[1][2]

The laser pulses fragment/disrupt, and ablate the cataract lens matter and the irrigation facilitates the emulsion of the lens material so it can be aspirated/removed from the eye.

There are three separate processes occurring simultaneously or sequentially.

If the laserphaco probe (as invented by Bath) is used, then all three processes occur simultaneously when the probe is inserted for removal of the cataractous lens.

When they occur separately the first process must always be the laser process, i.e. the laser phaco process of laser phacoemulsification. It still should be called laser phaco because the laser is phacoemulsifying the cataractous lens.

The generic term laser phaco follows classical nomenclature of the adjective (i.e. type of phaco) preceding the verb (phaco, i.e. shortened version of phacoemulsification).

Laser phaco, the generic term should refer to any laser pulse application to the lens whether in the UV, visible or IR radiation. The pulse application may be delivered via fiberoptic direct or indirect contact with lens tissue or via external focus to the lens.

Similarly, the term laser phaco should be used irrespective of laser pulse duration. Picosecond and nanosecond pulse durations have been popular for posterion capsulotomy. Femtosecond pulses can be focused externally through the ocular media to photofragment and photodisrupt the crystalline lens.

Laserphaco is the term coined by Dr. Patricia Bath she conceived the Laserphaco Probe when her patented invention is referenced or utilized.

1. Step 1: Photo-mechanical Laser Driven

  • The laser pulses must interact with the crystalline lens material to change its internal architecture at the physical and physio-chemical level.
  • The laser pulses fragment, disrupt, and/or ablate the lens material.

2. Step 2: Mechanical Hydraulics

  • Fluid (saline or BSS) is injected to emulsify the lens fragments.

3. Step 3: Mechanical Suction

  • Forces are applied to aspirate the emulsified lens fragments

References

[3]
1. ^{{Cite web |url=https://cfmedicine.nlm.nih.gov/physicians/biography_26.html |title=Dr. Patricia E. Bath |publisher=United States National Library of Medicine |location=United States |publication-place=United States}}
2. ^{{Cite web |url=https://www.ncbi.nlm.nih.gov/pubmed/2132735 |title=Laserphaco: fiberoptics plus irrigation/aspiration |last=Bath |first=P. E. |date=July 1990 |website=Journal of Cataract and Refractive Surgery |publisher=National Center for Biotechnology Information, U.S. National Library of Medicine |location=U.S. |pages=525–527 |publication-place=U.S. |pmid=2132735 |access-date=2019-03-10}}
3. ^https://scholar.google.com/citations?user=JiLeZJoAAAAJ&hl=en&citsig=AMD79oowsOBoWuqLd8FdaXWB5gIQGg89Pw&gmla=AJsN-F6YTihhBYlLSyeWn8g6S72IrpAM-_dRAtppU3Ar9bkcPxu56sWaMJOWDUnwTDuxRj_FKkKSgl9x76Al-Q7EQvqB28X4OUsb2NS4C0zRUxHMm7lZHyc
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