We will often use a variety of laser equipment to life in the development of laser in our eyes is always invincible, even scary horror artifact. And we also know that the laser is a human body damage, so in a timely manner to wear a laser protective glasses are very helpful to us, we can avoid the risk of laser induced blindness. We often listen to people talking about UV laser and infrared laser which is more serious harm to human body, today's laser protective glasses tell us about the different points of the ultraviolet laser and infrared laser.
In the laser damage, the body in the eyes of the most serious injury. The wavelength in the visible and near infrared laser refractive medium, low absorption rate, high transmittance, and the refractive focusing ability (i.e. poly strong power). High intensity visible or near infrared light into the eyes through the refractive medium, the accumulation of light on the retina. The retina of the laser energy density and power density increased to thousands or even tens of thousands of times, a large amount of light in an instant gathering on the retina, retinal photoreceptor cells induced by temperature rise rapidly, so that the photoreceptor cell degeneration and necrosis and loss of photoreceptor solidification effect. When the laser is in the light of the photoreceptor cells, the protein is not reversible. Once the damage will cause permanent blindness in the eyes. The effect of laser wavelength is different, and the effect is different. Far infrared laser damage to the eyes with corneal primarily, this is because the laser wavelength is almost entirely corneal absorption, so the corneal injury is the most serious, mainly caused by keratitis and conjunctivitis, patients feel eye pain, foreign body like stimulation, photophobia, tears, eyes filled with blood, decreased visual acuity. Far infrared damage should be covered to protect the eye should be covered to prevent infection, symptomatic treatment. UV laser eye injury is mainly the cornea and lens, the UV laser band absorbed almost all eye lens and corneal absorption to COSCO, which can cause the lens and corneal opacity. The extent of laser damage to the eye is related to the laser light energy, energy density and power density of the laser beam, which is different from the laser beam.
Can say that the laser is harmful to us, even the infrared laser and ultraviolet laser is different, but there are still risks, will let the blind our eyes, but the infrared laser will damage our cornea, and the ultraviolet laser will damage our lens, but the results of the two cases are let us blind.