How is visible light dangerous

On the other end of the spectrum there is X-ray light, which is too blue for humans to see. X-rays are another common light source that many of us have encountered at a doctor's office. X-rays can penetrate skin and muscles, allowing doctors to look at our bones. What you might not know is that the sun also emits X-rays. Lucky for us, the Earth's atmosphere blocks X-ray light. Non-visible light can also be found in your home in a device you most likely use every day: remote controls!

Your remote control uses infrared light to transmit signals to the television and other electronics. While the signal is invisible to you, your television can process the light and respond. Unfortunately, not all light is safe, and particular bands of light are hazardous to our health. Ultraviolet light can sunburn unprotected skin. Infrared light can emit thermal energy that can harm your body. However, some lights are actually more helpful to us than you might think. Hide glossary Glossary Study record managers: refer to the Data Element Definitions if submitting registration or results information.

Search for terms. Save this study. Warning You have reached the maximum number of saved studies The Effects of Visible Light on the Skin After Administration of Oral Polypodium Leucotomos The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U. Federal Government. Read our disclaimer for details. Recruitment status was: Recruiting First Posted : September 19, Last Update Posted : September 19, Study Description.

Polypodium Leucotomos Extract PLE is a tropical fern that has antioxidative, photoprotective, chemoprotective, anti-inflammatory, and immunomodulatory properties. Visible light nm causes pigmentation in melanocompetent individuals and induces DNA damage in the human skin through ROS production.

The goal of this study is to determine whether the administration of oral PLE has an effect on the development of visible light induced pigmentation. Detailed Description:.

Arms and Interventions. Outcome Measures. Eligibility Criteria. Inclusion Criteria: Patient age 18 and older Patients Fitzpatrick III-VI Patient able to understand requirements of the study and risks involved Patient able to sign a consent form Exclusion Criteria: A recent history of vitiligo, melasma, and other disorders of pigmentation with the exception of post inflammatory hyperpigmentation A known history of photosensitivity disorders A known history of melanoma or non-melanoma skin cancers Those planning on going to the tanning parlors Using any of the photosensitizing medication A woman who is lactating, pregnant, or planning to become pregnant Patient planning on exposing the irradiated or control areas to the sun.

Contacts and Locations. Information from the National Library of Medicine To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor. Please refer to this study by its ClinicalTrials. Layout table for location contacts Contact: Indermeet Kohli, Ph. D ikohli1 hfhs. More Information. Is Visible Light Dangerous? Visible light is typically pretty harmless.

However, some light can be so intense that it can damage the receptor cells in your eye causing temporary or permanent blindness. High powered lasers can also be damaging and will cause burns. Scientists can learn a lot about stars by observing the color of light they give off. The color of a star's light indicates how hot the star is and also the types of gases that it is made of. We also study our own sun using visible light to understand its structure.

Satellites with cameras that capture visible light are continuously used to study and monitor the surface of our planet as well.