Laser Cataract Surgery More Accurate Than Manual.
Cataract surgery, already an extraordinarily unhurt and profitable procedure, can be made more definite by combining a laser and three-dimensional imaging, a inexperienced study suggests. Researchers found that a femtosecond laser, Euphemistic pre-owned for many years in LASIK surgery, can portion into delicate eye tissue more cleanly and accurately than enchiridion cataract surgery, which is performed more than 1,5 million times each year in the United States penis pluges. In the modish procedure, which has a 98 percent star rate, surgeons use a micro-blade to illustration a ringlet around the cornea before extracting the cataract with an ultrasound machine.
The laser conduct uses optical coherence technology to customize each patient's sidelong glance measurements before slicing through the lens capsule and cataract, though ultrasound is still occupied to transfer the cataract itself. "It takes some ingenuity and vim and vigour to break the lens with the ultrasound," explained command researcher Daniel Palanker, an associate professor of ophthalmology at Stanford University jual tas guess kw super. "The laser helps to despatch this up and contrive it safer".
After practicing the laser modus operandi on pig eyes and donated tender eyes, Palanker and his colleagues did further experiments to reinforce 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 mow circles in lens capsules 12 times more conscientious than those achieved by the standard method. No adverse clobber were reported.
The study, reported in the Nov 17, 2010 originate of Science Translational Medicine, was funded by OpticaMedica Corp of Santa Clara, Calif, in which Palanker has an objectivity stake. The results are being reviewed by the US Food and Drug Administration, while the laser technology, which is being developed by several personal companies, is expected to be released worldwide in 2011.
Showing posts with label ophthalmology. Show all posts
Showing posts with label ophthalmology. Show all posts
Monday, January 30, 2012
Tuesday, October 25, 2011
Acupuncture Can Treat Some Types Of Amblyopia
Acupuncture Can Treat Some Types Of Amblyopia.
Acupuncture may be an outstanding advance to handle older children struggling with a sure form of lazy eye, different research from China suggests, although experts give the word more studies are needed. Lazy eye (amblyopia) is essentially a splendour of miscommunication between the brain and the eyes, resulting in the favoring of one visual acuity over the other, according to the National Eye Institute. The swat authors acclaimed that anywhere from less than 1 percent to 5 percent of occupy worldwide are affected with the condition theophylline costnavigation. Of those, between one third and one half have a species of sluggish eye known as anisometropia, which is caused by a change in the degree of nearsightedness or farsightedness between the two eyes.
Standard care for children involves eyeglasses or get in touch with lens designed to correct zero in issues. However, while this approach is often successful in younger children (between the ages of 3 and 7), it is flourishing in the midst only about a third of older children (between the ages of 7 and 12) custom articles directory. For the latter group, doctors will often lieu a sew over the "good" lookout temporarily in addition to eyeglasses, and therapy success is typically achieved in two-thirds of cases.
Children, however, often have make uncomfortable adhering to ground therapy, the treatment can bring emotional issues for some and a misadventure form of lazy eye can also imagine root, the researchers said. Study novelist Dr Dennis SC Lam, from the area of ophthalmology and visual sciences and Institute of Chinese Medicine at the Joint Shantou International Eye Center of Shantou University and Chinese University of Hong Kong, and his colleagues discharge their observations in the December topic of the Archives of Ophthalmology.
In the analysis for a better selection than cover therapy, Lam and his associates set out to inspect the potential benefits of acupuncture, noting that it has been occupied to treat dry eye and myopia. Between 2007 and 2009, Lam and his colleagues recruited 88 children between the ages of 7 and 12 who had been diagnosed with anisometropia.
About half the children were treated five times a week with acupuncture, targeting five circumscribed acupuncture needle insertion points (located at the peerless of the supervisor and the eyebrow region, as well as the legs and hands). The other half were given two hours a lifetime of shred therapy, combined with a reduced of one hour per heyday of near-vision exercises such as reading.
After about four months of treatment, the enquire side found that overall visual acuity improved markedly more among the acupuncture band apropos to the responsibility group. In fact, they celebrated that while lazy eye was successfully treated in nearly 42 percent of the acupuncture patients, that consider dropped to less than 17 percent amid the tatter patients.
Acupuncture may be an outstanding advance to handle older children struggling with a sure form of lazy eye, different research from China suggests, although experts give the word more studies are needed. Lazy eye (amblyopia) is essentially a splendour of miscommunication between the brain and the eyes, resulting in the favoring of one visual acuity over the other, according to the National Eye Institute. The swat authors acclaimed that anywhere from less than 1 percent to 5 percent of occupy worldwide are affected with the condition theophylline costnavigation. Of those, between one third and one half have a species of sluggish eye known as anisometropia, which is caused by a change in the degree of nearsightedness or farsightedness between the two eyes.
Standard care for children involves eyeglasses or get in touch with lens designed to correct zero in issues. However, while this approach is often successful in younger children (between the ages of 3 and 7), it is flourishing in the midst only about a third of older children (between the ages of 7 and 12) custom articles directory. For the latter group, doctors will often lieu a sew over the "good" lookout temporarily in addition to eyeglasses, and therapy success is typically achieved in two-thirds of cases.
Children, however, often have make uncomfortable adhering to ground therapy, the treatment can bring emotional issues for some and a misadventure form of lazy eye can also imagine root, the researchers said. Study novelist Dr Dennis SC Lam, from the area of ophthalmology and visual sciences and Institute of Chinese Medicine at the Joint Shantou International Eye Center of Shantou University and Chinese University of Hong Kong, and his colleagues discharge their observations in the December topic of the Archives of Ophthalmology.
In the analysis for a better selection than cover therapy, Lam and his associates set out to inspect the potential benefits of acupuncture, noting that it has been occupied to treat dry eye and myopia. Between 2007 and 2009, Lam and his colleagues recruited 88 children between the ages of 7 and 12 who had been diagnosed with anisometropia.
About half the children were treated five times a week with acupuncture, targeting five circumscribed acupuncture needle insertion points (located at the peerless of the supervisor and the eyebrow region, as well as the legs and hands). The other half were given two hours a lifetime of shred therapy, combined with a reduced of one hour per heyday of near-vision exercises such as reading.
After about four months of treatment, the enquire side found that overall visual acuity improved markedly more among the acupuncture band apropos to the responsibility group. In fact, they celebrated that while lazy eye was successfully treated in nearly 42 percent of the acupuncture patients, that consider dropped to less than 17 percent amid the tatter patients.
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