Why is exposure to X-rays injurious to health but not exposure to visible light, when both are electromagnetic waves?
Answers
Answer:
ultraviolet radiation and the eyes
High intensity UVB light can cause damage to the eyes and exposure can cause welder's flash (photo keratitis or arc eye) and may lead to cataracts and other medical issues.
Protective eyewear is beneficial to those who are working with or those who might be exposed to ultraviolet radiation. Given that light may reach the eye from the sides, full coverage eye protection is best. Ordinary, untreated glasses give some protection. Most plastic lenses give more protection than glass lenses. Some plastic lens materials, such as polycarbonate, block most UV. Most contact lenses help to protect the retina by absorbing UV radiation.
X-rays
While X-rays are used significantly in medicine, prolonged exposure to X-rays can lead to cell damage and cancer.
For example, a mammogram is an X-ray of the human breast to detect breast cancer, but if a woman starts having regular mammograms when she is too young, her chances of getting breast cancer increases.
Answer:
Explanation:
According to Oregon State University, prolonged exposure to blue light may accelerate aging, even if it does not reach your eyes. Light which comes from the phone, computer and household is also harmful. New research suggests that the light-emitting diodes that produce blue wavelength damage cells in the brain as well as retina.