Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

The Eyes That Are Opposite You

08.02.2005


The eyes are not only a mirror of a soul, but also a medical record. Their thermal radiation can indicate a disease even before clinical signs appear. Investigations in this area conducted by Russian scientists have been supported by the research program of the Russian Academy of Sciences called “Abstract Sciences for Medicine”.



Russian biophysicists under the guidance of G.R. Ivanitsky, Corresponding Member of the Russian Academy of Sciences, are developing the system for rapid disease diagnostics by eyes’ thermal radiation. The method may be particularly useful during epidemic when it is necessary to assess promptly the state of health of the people coming from infected regions, this being done directly at railway stations and airports.

Physicians have always taken the patients’ temperature. This is a rather reliable indicator of the state of health, although some diseased are not accompanied by noticeable rise in temperature. The thermometer is usually placed under the tongue, in the armpit, in the external acoustic meatus or the rectum. Such methods do not suit for remote rapid diagnostics of people in a crowd. Instead of a traditional thermometer, Russian researchers suggested to use cameras recording infrared radiation of people, which would allow to take temperature promptly at a distance. Infrared cameras determine the temperature with precision of up to several hundredth of a degree. During mass diagnostics, it is most convenient to take the temperature of face – a constantly open part of the body. The warmest part of the face is eyes. The eye glow more intensely than the skin in the infra-red range, as they contain six hard-working muscles each, a ramified blood supply system and lachrymal glands. The temperature in the vicinity of eyes normally reaches 36.5 degrees C.


To get a thermal portrait of the healthy person’s eyes, the researchers examined 20 relatively healthy persons at the age of 20 through 65. It has turned out that the temperature in various points of the eye is different and it changes depending on how long a person is looking without winking. After the eye is opened, the temperature first drops by approximately one degree C, then it grows up, and then it decreases evenly to reach the final stationary value within 20 seconds after the eyelid was lifted. When adaptation capabilities of the eye’s blood vessels are decreased, it takes twice as long for the temperature to settle down. The temperature curves of the left and the right eye may have different shapes. The researchers have also identified that the eyelid’s temperature in the area of the bridge of nose is the highest and it can be used as a remote diagnostic criterion.

Russian biophysicists are convinced that the thermal portrait of an eye would change in case of a disease. It is common knowledge that an experienced diagnostician can say a lot by the appearance of eyes about a patient’s state of health. The eyes respond to both infectious and functional diseases. Hydropic bed, eyeball reddening, change of intraocular pressure – all these reflect the state of nervous and endocrine systems, hematosis and blood circulation systems, state of digestion, kidneys functioning, and also a diversity of infectious diseases. However, symptoms of a disease become noticeable when the disease has already gone too far. Probably, recording of small temperature deviations in the infra-red range would facilitate finding criteria for early diagnostics of a disease. From this perspective, the eyes can serve as one of thermal markers with the most intense luminescence.

Sergey Komarov | alfa
Further information:
http://www.informnauka.ru

More articles from Health and Medicine:

nachricht Rabies viruses reveal wiring in transparent brains
19.01.2017 | Rheinische Friedrich-Wilhelms-Universität Bonn

nachricht On track to heal leukaemia
18.01.2017 | Universitätsspital Bern

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Traffic jam in empty space

New success for Konstanz physicists in studying the quantum vacuum

An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...

Im Focus: How gut bacteria can make us ill

HZI researchers decipher infection mechanisms of Yersinia and immune responses of the host

Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...

Im Focus: Interfacial Superconductivity: Magnetic and superconducting order revealed simultaneously

Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.

While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...

Im Focus: Studying fundamental particles in materials

Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales

Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Sustainable Water use in Agriculture in Eastern Europe and Central Asia

19.01.2017 | Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

 
Latest News

New Study Will Help Find the Best Locations for Thermal Power Stations in Iceland

19.01.2017 | Earth Sciences

Not of Divided Mind

19.01.2017 | Life Sciences

Molecule flash mob

19.01.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>