"The sun's UV rays can damage the skin of the eyelid as well as the cornea, lens and other parts of the eye," Reynolds said. "Even short-term, excessive exposure during a day at the beach could lead to photokeratitis." Photokeratitis or "snow blindness" may also be referred to as...
Exposure to the sun’s UV rays causes our body to increase its production of the pigment, melanin, to protect the skin from sun damage; this pigmentation is responsible for the tanning effect of the skin. However, prolonged exposure to harmful UV radiation leads to excess production of melanin...
To measure the amount of the grow light inside the grow tent, use aPAR Meter. Measuring light is important to ensure the optimal PPFD values to make plants thrive and yield. Using a PAR meter shows how much energy the grow light gives off and what lands on the plant. The optimal range ...
In areas that get very cold, repeated exposure to ice and road salt can be especially corrosive. Other natural forces: Even in areas where the climate is more temperate, car owners should be aware that UV rays can damage a car’s exterior over time. Bird droppings, tree sap, dust and ...
The unit doctors use to measure the dose is the millisievert (mSv). To give an idea of the risk from different types of X-ray tests, doctors compare the mSv of a procedure to how much time it would take to absorb the same amount of background radiation from the environment. Radiation...
UV damage occurs via two distinct types of mutations: dimerizing and oxidative. Let’s discuss these in more detail. 1. Dimerizing Mutations Exposure to UV-B, and to a lesser extent UV-A, rays leads to the formation of the most common photochemical products in DNA—cyclobutane pyrimidine di...
Sun Protection Factor – commonly known as SPF – is the measure of how much UV radiation is needed to produce sunburn on protected skin compared to unprotected skin, according to the Food and Drug Administration (FDA). With sunscreens, the SPF rating scale indicates the level of sunburn prote...
Exposure to UVA and UVB rays is always harmful, an expert from Penn State Melanoma and Skin Cancer Center pointed out. The damage from these UV rays may be obvious right away in the form of a tan or sunburn, but they can lead a range of problems, from wrinkles to skin cancer, caution...
Security window film can also protect your home from the harmful UV rays from the sun. Since 40% of fading and damage to fabrics are caused by UV light, security window film can help protect against this as well. Additionally, security window film can also reduce the risk of ...
The resin is resistant to UV rays Even though the resin comes from natural products, it doesn’t wear away or decompose over time Recommendations for use and care You may use any type of lubricant, water-based, silicone, those composed of plant or animal oils. The chastity device may ...