Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New study illuminates links between vision and neck complaints

24.06.2005


Can vision problems cause musculo-skeletal complaints and vice versa? This is a key question for anyone who works in front of a computer screen every day. Together with research colleagues at the Karolinska Institute, Uppsala University, and in the U.S., Associate Professor Hans O. Richter at Gävle University College has recently shown that when the tone is reduced in the focusing muscle of the eye, nerve impulses to the neck and shoulders are also affected. Now the team wants to go on to investigate the connection between eye problems and neck and back complaints in a cross-disciplinary study.



Today more than 60 million people in the EU work with computers. Many of them experience vision problems in connection with computer-screen work, including eye fatigue, eye pain, a gravely feeling in the eyes, stinging, bloodshot eyes, a feeling of dryness, temporary functional near-sightedness, often together with headaches and pains in the neck and/or shoulders. Mapping what causes these work-environment problems is a major issue for international organizations like ILO and WHO.

Focusing the lens of the eye requires coordination between various nerve and muscle groups in the eye, neck, and shoulder region. The connection between these causal factors has now been studied by a research team from Gävle University College, Uppsala University, the Karolinska Institute, and the University of Minnesota. The findings of the most recent part of the study, now being published in an international scientific journal, show that reducing the tone of the focusing muscle (by placing an optical lens over the eye and at the same time seeing to it that the lack of focus incurred is compensated for by relaxing the accommodation) affects (deactivates) the section of the cerebral cortex that regulates muscular movement in the head, neck, and shoulder region. The experiments were carried out using a PET camera (Positron Emission Tomography), where radioactive marker substances are used to monitor the activity in the brain of volunteers who were asked to focus the lens of their eyes on different types of stimuli under varying optical conditions.


Questions raised by the findings of the study are whether eye problems can cause stiffness, muscle aches, etc. in the neck/cervix and shoulder region. The reverse­-whether complaints in muscles and joints in the neck/cervix and shoulder region can affect the ability of the eye to focus­-should also be investigated further, according to research director Hans Richter:

’It is vital to seek further knowledge of how tensing and relaxing the neck, throat, and shoulders affects the eyes and how eye complaints can trigger and/or aggravate muscular aches in the shoulders and/or neck region. The findings may show, for instance, that patients who experience back and neck pain working with computers should have their eyes examined,’ Hans Richter maintains.

Hans Richter | alfa
Further information:
http://www.vr.se
http://www.hig.se

More articles from Health and Medicine:

nachricht A promising target for kidney fibrosis
21.04.2017 | Brigham and Women's Hospital

nachricht Stem cell transplants: activating signal paths may protect from graft-versus-host disease
20.04.2017 | Technische Universität München

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: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

Im Focus: Quantum-physical Model System

Computer-assisted methods aid Heidelberg physicists in reproducing experiment with ultracold atoms

Two researchers at Heidelberg University have developed a model system that enables a better understanding of the processes in a quantum-physical experiment...

Im Focus: Glacier bacteria’s contribution to carbon cycling

Glaciers might seem rather inhospitable environments. However, they are home to a diverse and vibrant microbial community. It’s becoming increasingly clear that they play a bigger role in the carbon cycle than previously thought.

A new study, now published in the journal Nature Geoscience, shows how microbial communities in melting glaciers contribute to the Earth’s carbon cycle, a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

7th International Conference on Crystalline Silicon Photovoltaics in Freiburg on April 3-5, 2017

03.04.2017 | Event News

 
Latest News

New quantum liquid crystals may play role in future of computers

21.04.2017 | Physics and Astronomy

A promising target for kidney fibrosis

21.04.2017 | Health and Medicine

Light rays from a supernova bent by the curvature of space-time around a galaxy

21.04.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>