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Latest Visual field Stories

Driving Simulator Used To Help Learn How The Visually Impaired Can Drive Safely
2014-03-17 08:10:23

Massachusetts Eye and Ear Infirmary A diagnosis of hemianopia, or blindness in one half of the visual field in both eyes as the result of strokes, tumors or trauma often means the end of driving. In about half of the states in the United States and in many other countries, driving with hemianopia is prohibited. However, in some countries including Belgium, the Netherlands, the UK, Switzerland and Canada, driving with hemianopia is permitted after passing a specialized road test....

2012-05-30 11:04:23

Researchers at the RUB and from Durham report Patients who are blind in one side of their visual field benefit from presentation of sounds on the affected side. After passively hearing sounds for an hour, their visual detection of light stimuli in the blind half of their visual field improved significantly. Neural pathways that simultaneously process information from different senses are responsible for this effect. "We have embarked on a whole new therapy approach" says PD Dr....

2011-08-02 09:53:00

PINE BROOK, N.J., Aug. 2, 2011 /PRNewswire/ -- A new visual evoked potential method has been developed to objectively assess visual field defects in patients with ocular and/or neurological conditions. The research team of Kenneth Ciuffreda, OD, PhD, Diana Ludlam and Naveen Yadav at the SUNY State College of Optometry, Department of Vision Sciences (New York, NY) presented a scientific poster called "Effect of Different Stimulus Configurations on the Visually Evoked Potential (VEP)" at the...

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2010-05-19 07:50:23

Thousands of people who are partially-sighted following stroke or brain injury could gain greater independence from a simple, cheap and accessible training course which could eventually be delivered from their mobile phones or hand-held games consoles, according to a new study. The new research has found that a computer-based technique developed and assessed by Durham University improved partially-sighted people's ability to 'see' better. It may eventually improve and broaden the portfolio of...

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2010-03-04 16:30:00

Why our peripheral vision may not be as random as we think As you read this, you may notice that the word directly in front of you is clear, but all the surrounding words are hard to make out. For most people, this effect "“ known as 'crowding' "“ is not a problem. However, for the millions of people worldwide who have lost their central vision through eye disease such as macular degeneration, it can make everyday tasks such as reading or recognising friends a challenge. Despite...

2009-11-12 11:39:29

Schepens Eye Research Institute scientists have found that--when tested in a driving simulator--patients with hemianopia (blindness in one half of the visual field in both eyes) have significantly more difficulty detecting pedestrians (on their blind side) than normally sighted people. These results, published in the November 2009 issue of Investigative Ophthalmology and Visual Science, fly in the face of some recent on-road studies that have found most people with hemianopia safe to drive....

2009-05-19 14:10:00

Suggests additional training to help brain adapt more fully and further enhance benefits BOSTON, May 19 /PRNewswire-USNewswire/ -- In a study of specially designed peripheral prism glasses for hemianopia patients (blinded in half the visual field in both eyes), scientists found that two-thirds of patients continued to wear the glasses at the end of the study period and beyond, indicating a high level of success. They also found that the brains of patients had not fully remapped to adjust...

2009-03-30 16:42:00

SARATOGA, Calif., March 30 /PRNewswire/ -- VisionCare Ophthalmic Technologies, Inc., a developer of advanced visual prosthetic devices for individuals with age-related macular degeneration (AMD), today announced the FDA Ophthalmic Devices Advisory Panel unanimously recommended that the FDA approve, with conditions, the premarket application (PMA) for its implantable telescope for End-Stage AMD. The implantable telescope is the first medical device to be recommended by the panel for FDA...

2009-02-02 15:43:35

The antiepileptic drug vigabatrin (VGB) has been shown to be one of the best treatments against a special form of epilepsy in infants, called infantile spasm. However, its use has been limited in many countries because it has been shown to cause a permanent narrowing of visual fields in approximately 40 percent of adults who have been exposed at school age or later. A new study published in Epilepsia examined school-aged children who had been treated with VGB in infancy. The findings showed...

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2008-11-21 09:19:14

A new study from Georgia Tech shows that when patients with macular degeneration focus on using another part of their retina to compensate for their loss of central vision, their brain seems to compensate by reorganizing its neural connections. Age"“related macular degeneration is the leading cause of blindness in the elderly. The study appears in the December edition of the journal Restorative Neurology and Neuroscience. "Our results show that the patient's behavior may be critical to...


Word of the Day
vermicular
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.
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