HOME >> MEDICINE >> NEWS
Green laser pointer can cause eye damage

ROCHESTER, Minn. -- Mayo Clinic ophthalmologists have found commercially available Class 3A green laser pointers can cause visible harm to the eye's retina with exposures as short as 60 seconds. The findings will be published in the May issue of Archives of Ophthalmology, http://archopht.ama-assn.org.

Dennis Robertson, M.D., Mayo Clinic ophthalmologist, conducted investigations with a green laser pointer directed to the retina of a patient's eye; the eye was scheduled for removal because of a malignancy. The green laser damaged the pigment layer of the retina, although it did not cause a measurable decrease in the visual function of the patient's eye. Dr. Robertson believes that longer exposures could harm vision, however. He also warns about potential damage from higher-powered green laser pointers.

"With the use of laser pointers that are more powerful than five milliwatts, there would likely be damage to the actual vision," he says. "Functional damage could occur within seconds."

Dr. Robertson does not advocate against use of green laser pointers; rather, he advocates against their misuse. "Green laser pointers are not a public health hazard at this time, but something people should be aware of," he says. "I'm raising concerns that people should be cautious when using green laser pointers not to point them at someone's eye or face. It's like how you use your knife -- carefully."

While pointing out risks of green laser pointers, he adds, "This is a potential hazard to people's eyes, but rarely is it going to be a practical hazard because the aversion reflex we have naturally will cause a person to blink or turn away from a laser light."

Green laser pointers are readily available in stores and on the Internet, according to Dr. Robertson. "Kids can buy these," he says. "They're not strictly regulated."

He adds that Class 3A green laser pointers are increas
'"/>

Contact: Lisa Lucier
newsbureau@mayo.edu
507-284-5005
Mayo Clinic
9-May-2005


Page: 1 2 3

Related medicine news :

1. Green tea holds promise as new treatment for inflammatory skin diseases
2. Green tea may protect the bladder from becoming inflamed
3. Greenberg Prize awarded to Dr. Joseph G. Hayes
4. Green tea extract protects against brain damage in new mouse model of HIV-related dementia
5. Green tea compound suppresses factors causing cartilage, bone destruction in arthritis
6. Green tea compound may be a therapy for people with rheumatoid arthritis
7. New GreeneChip identifies multiple pathogens rapidly and accurately
8. GreeneChip -- New diagnostic tool that rapidly and accurately identifies multiple pathogens
9. Green tea and the Asian Paradox
10. ERS altimeter survey shows growth of Greenland Ice Sheet interior
11. Institute of Medicine elects Gladstone Director Warner Greene

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:10/12/2017)... ... 2017 , ... HMP , a leader in healthcare events and education, today ... Digital Award for ‘Best B-to-B Healthcare Website.’ Winners were announced during the Eddie & ... award competition recognizes editorial and design excellence across a range of sectors. This year’s ...
(Date:10/12/2017)... ... October 12, 2017 , ... On Saturday, October 21, the Health & ... by Moonlight to raise money for the American Heart Association Heart Walk. Teams of ... will work together to keep their treadmills moving for 5 hours. Treadmills will start ...
(Date:10/12/2017)... ... , ... Health Literacy Innovations (HLI), creator of the Health ... Cancer Patient Education Network (CPEN), an independent professional organization that shares best practices ... , As CPEN’s strategic partner, HLI will help support CPEN members by ...
(Date:10/12/2017)... ... October 12, 2017 , ... Vohra ... care advancements to physician colleagues, skilled nursing facility medical directors and other clinicians ... Waters of Wound Care." , "At many of these conferences we get to ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... presents its enhanced Pepper Flow promotional review platform at the Promotional Review ... increased insight-driven capabilities help marketers streamline the medical, legal, and regulatory review ...
Breaking Medicine News(10 mins):
(Date:10/7/2017)... Texas , Oct. 6, 2017   Provista, ... with more than $100 billion in purchasing power, today ... news and information. The Newsroom is the ... and industry trends, infographics, expert bios, news releases, slideshows ... having access to a wealth of resources at their ...
(Date:10/4/2017)... , Oct. 4, 2017 ... single-use, self-contained, illuminating medical devices, today announced regulatory ... Health Surveillance Agency (or Agência Nacional de Vigilância ... first single-use, cordless surgical retractor with integrated LED ... optimal access, illumination and exposure of a tissue ...
(Date:10/2/2017)... 2, 2017 Halo Labs announces the European launch of ... the HORIZON at MIBio 2017 in Cambridge, U.K ... particulate matter in biopharmaceutical samples with unprecedented speed and sensitivity while ... technique Backgrounded Membrane Imaging. ... HORIZON subvisible particle analysis system ...
Breaking Medicine Technology:
Cached News: