Laser wavelength and eye damage: in laser damage, the most serious eye damage to the body. Wavelength in the visible and near-infrared light laser, the absorption of eye refractive medium low yield, high transmission rate, and refractive media focus ability (that is, the concentrated force). High strength of the visible and near-infrared light enters the eye through the human eye refractive media, accumulate the light on the retina. At this point in the retina of excitation light energy density and power density to thousands or even tens of thousands of times, a lot of light in the retina in the moments together, cause retinal photoreceptor cell layer temperatures soared, losing light-sensitive photoreceptor cells to solidification degeneration necrosis. Laser in the photoreceptor cells in the superheat caused by protein frozen denaturation was irreversible damage. Once damage can cause permanent blindness of the eye.
The wavelength of the laser to varying degrees of different effect on the eye, the consequences are also different. Far infrared laser damage to the eyes, mainly the cornea that almost all of this is because this kind of wavelength laser is absorbed by the cornea, so most cornea injury, main cause keratitis and conjunctivitis, patients feel pain in your eyes, eyewinker stimulation, afraid of light, shed tears, eye hyperaemia, decreased vision, etc. When the far infrared light damage should cover to protect the eyes, prevent infection, symptomatic treatment.
Ultraviolet laser cross-eye injury is mainly the cornea and lens, almost all the wavelengths of ultraviolet laser is lens of the eye absorption, and cosco is given priority to with corneal absorption, which can cause the lens and corneal opacity