Optic Nerve Current Events | Optic Nerve News
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New marker for raised intracranial pressure
Magnetic resonance imaging (MRI) measurements of the thickness of the optic nerve sheath are a good marker for raised intracranial pressure (ICP). view more (2008-09-11)
Impotency drugs may be associated with increased risk of optic nerve damage
Viagra and Cialis, the drugs used to treat impotency, may be associated with an increased risk of optic nerve damage in men with a history of heart attack or high blood pressure, suggests a small study in the British Journal of Ophthalmology. view more (2006-01-17)
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)
Glaucoma diagnosis may be mistaken in some younger Chinese people
Many young and middle-aged people of Chinese ancestry told they are at risk of going blind from glaucoma may be getting incorrect information, say researchers at the Stanford University School of Medicine. view more (2007-03-22)
Water channel protein implicated in relative of multiple sclerosis
Researchers have identified a molecular suspect in a disorder similar to multiple sclerosis (MS) that attacks the optic nerve and spinal cord, according to a report presented at the 130th annual meeting of the American Neurological Association in San Diego. view more (2005-09-22)
Severed nerves can be made to grow again
IT IS being hailed as one of the most significant advances in nerve regeneration in a decade. After severing an optic nerve in rats, neurologists have found a way to reconnect it to the brain so that it once again transmits normal electrical signals. The achievement is a first in mammals, and may... view more... (2001-12-05)
MRI scans can predict effects of MS flare-ups on optic nerve
One of the most pernicious aspects of multiple sclerosis (MS) - its sheer unpredictability - may finally be starting to yield to advanced medical imaging techniques. view more (2008-12-17)
Vax and Pax: Taking turns to build an eye
Opposing ball clubs don't take the field at the same time, and neither do teams of proteins responsible for creating the eye. While one team builds the retina, in adjacent cellular turf the opponents are busy constructing the cord that carries visual signals to the brain. And these guys aren't supposed to mingle. view more (2006-10-16)
Three generations of optic Internet
Professor Mikel Izal from the Public University of Navarre, Basque Country, has analysed the problems to integrate new optic networks in actual network and transfer level (TCP/IP) Internet protocols. This integration will enable to create the core of the second Internet generation in future, the so called Internet 2. In that area, technological... view more... (2002-09-24)
Research suggests new treatment approaches for glaucoma
New research from Children's Hospital Boston and the Massachusetts Eye and Ear Infirmary (MEEI) may help explain how glaucoma causes blindness, revealing the chain of cellular and molecular events that ultimately damage the optic nerve, preventing visual information from traveling from the eye to the brain. view more (2006-12-06)
Simple eye scan opens window to multiple sclerosis
A five-minute eye exam might prove to be an inexpensive and effective way to gauge and track the debilitating neurological disease multiple sclerosis, potentially complementing costly magnetic resonance imaging to detect brain shrinkage - a characteristic of the disease's progression. view more (2007-10-16)
Glaucoma patients at significantly higher risk for falls, motor vehicle accidents
Persons affected by glaucoma are over three times more likely to have been involved in falls and motor vehicle accidents than persons of the same age without the condition, say researchers from Dalhousie University in Canada. view more (2007-03-01)
Glaucoma report points to increased costs
A new Centre for Eye Research Australia/ Access Economics report shows the cost of glaucoma will more than double in the next two decades. view more (2008-06-04)
Hackers beware! New technique uses photons, physics to foil codebreakers
For governments and corporations in the business of transmitting sensitive data such as banking records or personal information over fibre optic cables, a new system demonstrated by University of Toronto researchers offers the protective equivalent of a fire-breathing dragon. view more (2006-02-23)
Cell's split personality is a major discovery into neurological diseases
Researchers at the Université de Montreal (UdeM) and the Montreal Neurological Institute (MNI), McGill University have discovered that cells which normally support nerve cell (neuron) survival also play an active and major role in the death of neurons in the eye. view more (2009-05-08)
New discovery about the formation of new brain cells
The generation of new nerve cells in the brain is regulated by a peptide known as C3a, which directly affects the stem cells' maturation into nerve cells and is also important for the migration of new nerve cells through the brain tissue, reveals new research from the Sahlgrenska Academy published in the journal Stem Cells. view more (2009-11-24)
Quantum decoys foil code-breaking attempts
Computer code-makers may soon get the upper hand on code-breakers thanks to a new quantum cryptography method designed at the University of Toronto. Quantum cryptography uses particles of light to share secret encryption keys relayed through fibre-optic communications. view more (2005-07-19)
Could skin cells become brain cells? (p 172)
Results of an experimental study in this week's issue of THE LANCET highlight how adult skin cells can be made into precursor nerve cells, with potential implications for the future treatment of neurodegenerative disorders such as Parkinson's disease. Ethical and practical considerations limit the availability of neural stem cells derived from... view more... (2004-07-07)
Maintaining the brain's wiring in aging and disease
Researchers at the Babraham Institute near Cambridge, supported by the Alzheimer's Research Trust and the Biotechnology and Biological Sciences Research Council (BBSRC), have discovered that the brain's circuitry survives longer than previously thought in diseases of ageing such as Alzheimer's disease. view more (2008-12-08)
Signals from stroking have direct route to brain
Nerve signals that tell the brain that we are being slowly stroked on the skin have their own specialised nerve fibres in the skin. This is shown by a new study from the Sahlgrenska Academy. The discovery may explain why touching the skin can relieve pain. view more (2009-04-15)
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