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:10/13/2017)... ... October 13, 2017 , ... Lori R. Somekh, founder of the ... national organization of elder law and special needs planning attorneys. “Membership in ElderCounsel helps ... provides a forum to network with elder law attorneys nationwide,” said Somekh. , ...
(Date:10/13/2017)... ... 2017 , ... Many families have long-term insurance that covers care for a ... waiver for care if the client has a cognitive impairment diagnosis. , “What ... is often waived, so the benefits from their insurance start immediately,” said Mechell Vieira, ...
(Date:10/13/2017)... York, NY (PRWEB) , ... October 13, 2017 , ... ... influential people in business to advocate for action towards gender equality at their inaugural ... views from around the globe, and reached a social audience of over 3 million. ...
(Date:10/13/2017)... ... 13, 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of ... popular and least understood books in the Holy Scriptures, Revelation. The Book of Revelation ... scholars for centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins ...
(Date:10/13/2017)... ... October 13, 2017 , ... ... Software Development, has been awarded a contract by the Center for Medicare and ... aims to accelerate the enterprise use of Agile methodologies in a consistent and ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)... received FDA 510(k) clearance in May 2017 for its highly anticipated ... for endoscopy environments. An innovative secondary monitor solution, ZeroWire Mobile ... the improvement of patient outcomes, procedural efficiency, and the lowering of ... ... By ...
(Date:10/7/2017)... 6, 2017   Provista, a proven leader ... billion in purchasing power, today announced a new resource ... The Newsroom is the online home for case ... expert bios, news releases, slideshows and events. ... wealth of resources at their fingertips, viewers can also ...
(Date:10/4/2017)... , Oct. 4, 2017  South Korean-based healthcare product ... training aide "cprCUBE" on Kickstarter. The device will educate ... cardiac arrests with better efficiency compared to the dated ... real-time feedback on efficacy of the compression for a ... has a goal to raise $5,000. ...
Breaking Medicine Technology:
Cached News: