(redirected from Artificial light)
Also found in: Dictionary, Thesaurus, Encyclopedia.


n the arrangement of a light source to create a certain effect. The lighting of a dental operatory is done to achieve a sufficient level of lighting to reduce eye strain in shifting from one field of vision to another and to achieve a light intensity across the spectrum to mimic natural light.

Patient discussion about lighting

Q. Is it true that is places with less sun light people tend to be more depressed?

A. that is correct- a good friend of mine moved to north Alaska about 3-4 years ago. in the winter they hardly have sun. then some of the people get depressed. the treatment is pretty funny- they have to move around with a hat with an illumination system shining over their eyes. they think that the lack of sun light causes a lack of certain chemicals in the brain.

Q. My husband has psoriasis and the dermatologist suggested that he try the uv light treatment.Anyone try it. some of the side effects may be skin cancer and melanoma's. If so can you please let me know if it actually did help or if not. Thanks a million.

A. uv light treatment procedure is relatively new mod of treatment so here is difficult to build an opinion about it.
Actually there are two main type of treatment relating uv light are in use one is uvb treatment and other one is PUVA (uva light based).
As uvb is the most prominent factor for skin cancer so this treatment is more risky. While PUVA is quite effective treatment and has less side effects.

Q. I had cataract surgery with iol implant, and ever since I have awful light sensitivity. Any ideas? I can't go into a "super store" without my sunglasses. My eyes ache at the end of the day. My doctor says "I don't know!"

A. May sound a bit silly question, but have you tried to consult your ophthalmologist (eye doctor, e.g. the one that performed the operation) about it? Cataract surgery, although considered very successful, isn't problem-free. Primary physician may not have the necessary specialization to deal with these subjects.

More discussions about lighting
References in periodicals archive ?
But it's possible artificial light might contribute to obesity by suppressing the production of melatonin, a hormone that helps regulate sleep cycles.
Stevens speculates that artificial light may actually account for up to 30 per cent of all breast cancer cases.
And academics believe exposure to artificial light in the evening has the same effect on humans by disrupting the body clock and the brown fat cells that prevent weight gain.
Researchers at Leiden University Medical Centre, Netherlands, reckon artificial lights disrupt our body clocks and the brown fat cells that burn calories.
The researchers, from Bangor University and the University of Exeter, used a raft in the Menai Strait to monitor how artificial light at night can affect the settlement of marine invertebrates into new habitats.
Though for some cases there may be a lot of daylight in the room during the whole year, it doesn't mean the Illuminance E will be high enough to turn off the artificial light every day.
Guidance, which sets out the full list of premises and explains how action can be taken by a local authority when artificial light is a statutory nuisance, can be found here'.
Artificial light then can create havoc in this process, to the extremes that we experience in jet lag or working a job with changing shifts.
Though they are fed consistently and allowed to linger over their food, this has been the case for years, leading researchers to conclude that other factors such as artificial light and stress may be blamed.
Malaria vectors are therefore probably just as attracted to lights as are Chagas and leishmaniasis vectors, and we should then expect a corresponding change in modes of Transmission with increased use of artificial light.
Recent studies by Richard Stevens, a University of Connecticut epidemiologist, show a possible correlation between increased prostate and breast cancers and areas with high levels of artificial light.
Thirty years ago, astronomers were the first to express concern about artificial light that was obstructing their view of the planets and stars.