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The worldwide prevalence of glaucoma is increasing (p 1711)
Early diagnosis of glaucoma is essential to prevent irreversible visual impairment, according to a Seminar in this week's issue of THE LANCET. Glaucoma is a group of disorders that progressively damage the optic nerve in the eye and without treatment can cause visual disability and eventual blindness. Glaucoma affects more than 66 million people... view more... (2004-05-19)
Through a light, darkly
A British physicist has come up with a way to reveal the shifting and shining colours that form in the dark spots where light waves interfere with each other. The patterns await experimental demonstration but computer-generated images are already illuminating new aspects of light that had until now remained in the shadows. When two waves meet... view more... (2002-10-18)
Researcher turns brown algae phylogeny upside down
According to fellow phycologists, algae expert Stefan Draisma from the Leiden University has turned brown algae phylogeny completely upside down. His research shows that few of the currently assumed relationships between the orders are correct. Furthermore, it transpires that some simple species arose not earlier but later than more complex... view more... (2002-06-24)
Babies and their favourite colours
How do babies see colour and which ones do they prefer? The Surrey Baby Lab, part of UniS' Department of Psychology, was set up to investigate exactly this. With over 250 babies having visited so far, some very fascinating findings have been produced. Interestingly, it has been shown that infants, at just four-months old, can already categorise a... view more... (2005-03-08)
Latest generation lineal accelerator for radiotherapy
The Cancer Department at the la University of Navarra University Hospital has acquired a Siemens, latest-generation lineal accelerator. This is the first centre in Spain to install this advanced radiotherapy apparatus which is equipped with multilaminas, minimultilaminas and portal vision. view more (2005-05-17)
Heat-treated wood - material of the future
Heat-treated wood is a new, ecological wood product, which main advantage is the ecological method of manufacture. When wood is exposed to high temperatures (200°C or more), its properties change significantly. Sugars inside the wood break up into a form, which rot fungi cannot use. What is more, natural protective compounds in the wood are... view more... (2001-05-11)
Tangerine Ruff 'n' Sniff: new clue to bird social behaviour
Scientists believe they have opened the door to an overlooked area of bird behaviour - the use of social scents. The basic assumption is that vision and hearing are the main senses that birds use to signal each other, e.g. the colour of plumage; the sound of birdsong. This is questioned by new experimental evidence observed in the Crested Auklet,... view more... (2003-05-12)
University footballers in training for World Cup
Staff in the University of Plymouth`s School of Computing and Department of Communication & Electronic Engineering (DCEE) are busy preparing to represent England in the FIRA 2002 (International Federation of Robot Soccer Associations) Robot Football World Cup, taking place in Korea next week. The University team, widely acknowledged as the... view more... (2002-05-17)
UCSB researchers discover the dawn of animal vision
By peering deep into evolutionary history, scientists at the University of California, Santa Barbara have discovered the origins of photosensitivity in animals. view more (2007-10-17)
'Twinkle' eye test could improve AMD diagnosis
Scientists at UCL (University College London) have developed a more reliable test for detecting vision loss in people with age-related macular disease (AMD), the leading cause of blindness in the UK and US. The method, which centres on a visual illusion, could lead to earlier self-diagnosis of sight deterioration - encouraging patients to access... view more... (2007-10-25)
New species of spiders discovered by UBC scientist in Papua New Guinea
A University of British Columbia researcher has discovered dozens of species of jumping spiders that are new to science, giving scientists a peek into a section of the evolutionary tree previously thought to be sparse. view more (2009-03-25)
Lapis Lazuli as blue unexpected pigment in Iran L'˘jvardina ceramics
Blue colour has always attracted people. To date United Nations and Europa flags are blue ! The blue colour is rather rare in nature; blue-green is more frequent. The main "true blue" mineral is lazurite, an aluminosilicate belonging to the sodalite group, associated with some other minerals (diposide, quartz, calcite, pyrite to form the... view more... (2003-04-15)
Fine motor skills, social acceptance lower in children with 'lazy eye'
A recent study evaluating the fine motor skills and perceived self esteem of children with amblyopia (or "lazy eye") compared with age-matched children will be presented during the Association for Research in Vision and Ophthalmology (ARVO) 2007 Annual Meeting in Fort Lauderdale, Fla. view more (2007-05-09)
Fish eyes could hold clue to repairing damaged retinas in humans
A special type of cell found in the eye has been found to be very important in regenerating the retina in zebrafish and restoring vision even after extensive damage. view more (2007-08-01)
Sensorial evaluation of the freshness of fish
AZTI has drawn up some 40 tables for freshness specific for the most important commercial species in southern Europe, including fish and shellfish. The sensorial method, known as QIM (Quality Index Method) and introduced into Europe some years ago, is being applied to a greater number of species, including some in the frozen state. Concretely, for... view more... (2005-04-18)
Lighting up paper
Researchers have developed a sophisticated way of measuring the print quality of paper. The work, published today in the Institute of Physics journal, Measurement Science and Technology, describes how Jari Palviainen and colleagues at the Universities of Joensuu and Oulu in Finland, use what is known as a diffractive optical element-based sensor... view more... (2002-02-27)
Highlights from Opto and Laser Europe, July 2000
Consultants and suppliers question train signal claims Claims made by the UK's rail operator Railtrack that its signal lights conform to the International Commission on Illumination's (CIE) recommendations have been questioned by its signal suppliers and external technical consultants. The allegations follow a story in last month's issue (OLE June... view more... (2000-06-23)
Mystery behind the strongest creature in the world
The strongest creature in the world, the Hercules Beetle, has a colour-changing trick that scientists have long sought to understand. view more (2008-03-11)
Impact of elevated homocysteine levels on vision under study
Homocysteine, an amino acid believed to contribute to heart attack, stroke and dementia, likely also is a player in retinal damage and vision loss, researchers say. view more (2007-10-16)
Speaking Eyes
If you speak only one language, do not feel upset. Simultaneously with your native language or perhaps even earlier, you have learned one more language - a visual one. A person perceives everything around through the eyes. The eyes "speak" their own special language. This language has letters, words and even grammar rules. Psychologists... view more... (2005-03-25)
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