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A New York teen lost vision in his left eye moments after powering up a "defectively designed," Chinese-made laser pointer he purchased on Amazon, according to a lawsuit against the retail behemoth.
These conclusions must be qualified with recent theoretical observations that certain prescription medications may interact with some wavelengths of laser light, causing increased sensitivity (phototoxicity). Beyond the question of physical injury to the eye from a laser pointer, several other undesirable effects are possible.
Doctors determined that his eye damage was likely caused by playing with and staring at the light of a green laser pointer A Laser Pointer Burned a Hole in a 9-Year-Old Boy's Eye, Doctors Say Skip ...
On August 6, 5 off-duty police officers arrested Baptist University student union president Keith Fong Chung-yin after he purchased 10 laser pointers in Sham Shui Po for possession of "offensive weapons". Fong said he would use the pointers for stargazing, but police described them as “laser guns” whose beams could cause eye injuries.
Reported injuries mostly entail eye pain or irritation, flash blindness and afterimages or an unspecified eye injury. It’s rare for a laser strike to cause retinal damage or long-term injuries.
To give another example, of a more powerful laser—the type that might be used in an outdoor laser show: a 6-watt green (532 nm) laser with a 1.1 milliradian beam divergence is an eye hazard to about 1,600 feet (490 meters), can cause flash blindness to about 8,200 feet (1.5 mi/2.5 km), causes veiling glare to about 36,800 feet (7 mi; 11 km ...
Flash blindness is an either temporary or permanent visual impairment during and following exposure of a varying length of time to a light flash of extremely high intensity, such as a nuclear explosion, flash photograph, lightning strike, or extremely bright light, i.e. a searchlight, laser pointer, landing lights or ultraviolet light. [1]
The "Today" show unfolded Wednesday without co-anchor Savannah Guthrie, who is undergoing retinal detachment surgery three weeks after suffering a serious eye injury. “She’s had some laser ...