Laser Cataract Surgery More Accurate Than Manual

Laser Cataract Surgery More Accurate Than Manual.


Cataract surgery, already an outrageously crypt and pre-eminent procedure, can be made more unyielding by combining a laser and three-dimensional imaging, a remodelled study suggests. Researchers found that a femtosecond laser, hand-me-down for many years in LASIK surgery, can omission into delicate eye tissue more cleanly and accurately than guide cataract surgery, which is performed more than 1,5 million times each year in the United States skin whitening in costa rica. In the widespread procedure, which has a 98 percent outcome rate, surgeons use a micro-blade to gash a annulus around the cornea before extracting the cataract with an ultrasound machine.



The laser strategy uses optical coherence technology to customize each patient's percipience measurements before slicing through the lens capsule and cataract, though ultrasound is still employed to separate the cataract itself. "It takes some strength and vigour to break the lens with the ultrasound," explained preside researcher Daniel Palanker, an associate professor of ophthalmology at Stanford University lexaryn achat. "The laser helps to shoot this up and prove to be it safer".



After practicing the laser custom on pig eyes and donated person eyes, Palanker and his colleagues did further experiments to bind that the high-powered, rapid-pulse laser would not cause retinal damage. Actual surgeries later performed on 50 patients between the ages of 55 and 80 showed that the laser share circles in lens capsules 12 times more careful than those achieved by the conventional method sitemap. No adverse junk were reported.



The study, reported in the Nov 17, 2010 issuance of Science Translational Medicine, was funded by OpticaMedica Corp of Santa Clara, Calif, in which Palanker has an open-mindedness stake likoria women disease. The results are being reviewed by the US Food and Drug Administration, while the laser technology, which is being developed by several restricted companies, is expected to be released worldwide in 2011.



Dr Scott Greenstein, a broad ophthalmology and cataracts adept at Massachusetts Eye and Ear Infirmary, said he was uneasy that the analyse was funded by a house with a tether in the outcome. But he added that the matter was encouraging. "I in one's own view am off the deep end by it," said Greenstein, who teaches ophthalmology at Harvard Medical School. "It's an enhancement of something we're already doing that's from head to toe successful". "We be in want of a legions of centers studying this with more patients," he added. "It would be serviceable to show if there is a significant statistical unlikeness in the outcomes".



Both Greenstein and Dr Richard Bensinger, a Seattle ophthalmologist and spokesman for the American Academy of Ophthalmology, expressed charge that the laser-guided cataract surgery would be much more valuable than directions surgery and were skeptical that salubrity assurance companies would be delighted to collect up the tab. "It's a fairly expensive spirit to do something we do right now with a $120 instrument that makes the opening," Bensinger said. "It's constructive to the sweep that it can avoid a tear in the cornea - but the downside is you emergency a very expensive machine to do it. It's at best a scrap refinement that adds a taste precision".



Although the femtosecond laser technique is unquestionably more precise, Palanker's allege that it results in a better adapt for the artificial lens replacing the clouded one is dubious, Bensinger and Greenstein said. Experienced surgeons performing vade-mecum cataract surgery once in a blue moon have anxiety aligning the new lens with the learner and keeping it in place, they noted.



So "Over the thousands of cases I've done, I'm in effect not hep personally of this being a problem," Greenstein said. "If you have a less precise, proficient surgeon then this would be a advance for the patient. It makes reproducible, exact incisions every time". Palanker said further scrutinization will focus on whether laser-guided cataract surgery results in better postoperative sight than traditional surgery Get in touct with the irs for home. Among the two-dimensional group of study participants, he said, there was no significant contrariety in outcomes between the two.