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Latest Visual system Stories

2014-02-27 18:47:42

Photoreactive compounds developed by LMU scientists directly modulate nerve-cell function, and open new routes to the treatment of neurological diseases, including chronic pain and certain types of visual impairment. All modes of sensory perception are based on communication between nerve cells. Both the response to the primary stimulus and the transmission of the resulting signal depend on the function of specialized receptor proteins that are associated with the surface membranes of...

2014-02-20 12:06:56

Progressive degeneration of photoreceptors—the rods and cones of the eyes—causes blinding diseases such as retinitis pigmentosa and age-related macular degeneration. While there are currently no available treatments to reverse this degeneration, a newly developed compound allows other cells in the eye to act like photoreceptors. As described in a study appearing in the February 19 issue of the Cell Press journal Neuron, the compound may be a potential drug candidate for treating patients...

2014-02-10 11:15:53

Optogenetics is a technique that allows scientists to control neurons' electrical activity with light by engineering them to express light-sensitive proteins. Within the past decade, it has become a very powerful tool for discovering the functions of different types of cells in the brain. Most of these light-sensitive proteins, known as opsins, respond to light in the blue-green range. Now, a team led by MIT has discovered an opsin that is sensitive to red light, which allows researchers...

2014-01-20 09:47:00

People have a distance at which they are best able to judge depth. That distance, it turns out, is dictated by how long people understand their arms to be. Researchers showed this in the Journal of Neuroscience by tricking subjects with virtual reality into thinking their reach was longer than it really was. The result? Their accurate perception of depth via sight moved outward and touch became more sensitive. We need to reach for things, so a connection between arm length and our ability...

Printing Eye Cells Shown Feasible Using Inkjet Technology
2013-12-18 09:30:19

Brett Smith for redOrbit.com - Your Universe Online A UK team of biomedical researchers has successfully demonstrated the ability to use inkjet technology to print cells taken from the eye, according to a newly published report in the journal Biofabrication. In the study, an inkjet printer was used to print two types of cells derived from the retina of adult rats ― ganglion cells, which send information from the eye to the brain, and glial cells, which offer fortification and...

2013-11-24 23:02:34

Find inexpensive prices for the Macbook Pro Retina at http://www.blackfridaycybermonday.com/macbook-pro-retina. (PRWEB) November 24, 2013 This year, more people than ever are expected to participate in Black Friday and Cyber Monday. The place for the most amazing deals on items like the MacBook Pro Retina is BlackFridayCyberMonday.com. This is the premiere place on the web to gain access to exclusive holiday deals. The MacBook Pro Retina has vibrant picture quality and an array of...

2013-11-19 16:54:03

According to study published in Restorative Neurology and Neuroscience Nonarteritic anterior ischemic optic neuropathy (NAION) is one of the leading causes of sudden and irreversible loss of vision in older adults. In a prospective randomized trial of 60 patients with NAION, investigators have shown that the addition of the corticosteroid fluocortolone (FC) to standard therapy significantly improves both short- and long-term visual acuity, especially when given soon after the onset of...

2013-11-14 23:27:29

Tips on How to Relieve Stress by Drinking More Water and Taking Care of Eyes from Water and Eye Researcher Sharon Kleyne, Founder of Bio Logic Aqua Research Grants Pass, OR (PRWEB) November 14, 2013 The presence of eye strain and dry, irritated eyes can increase one’s feelings of stress and anxiety, reports water and eye researcher Sharon Kleyne. In addition, according to Kleyne, the relationship between stress and eyes can become a vicious circle because too much stress can also cause...

Alzheimer's Disease May One Day Be Diagnosed By Visual Cues
2013-11-13 14:25:05

[ Watch the Video: Vision Loss Linked With Alzheimer’s Disease ] Susan Bowen for redOrbit.com - Your Universe Online In the future, your optometrist may be the first person to realize that you could have Alzheimer’s disease (AD). An international team of researchers has discovered the loss of a particular layer of retinal cells may reveal the presence of the disease. Led by R.C. Chang from the University of Hong Kong, along with researchers from Georgetown University Medical...


Latest Visual system Reference Libraries

Eye
2013-04-30 13:41:59

1. vitreous body 2. ora serrata 3. ciliary muscle 4. ciliary zonules 5. canal of Schlemm 6. pupil 7. anterior chamber 8. cornea 9. iris 10. lens cortex 11. lens nucleus 12. ciliary process 13. conjunctiva 14. inferior oblique muscle 15. inferior rectus muscle 16. medial rectus muscle 17. retinal arteries and veins 18. optic disc 19. dura mater 20. central retinal artery 21. central retinal vein 22. optic nerve 23. vorticose vein 24. bulbar sheath 25. macula 26. fovea 27. sclera 28....

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Word of the Day
lunula
  • A small crescent-shaped structure or marking, especially the white area at the base of a fingernail that resembles a half-moon.
This word is a diminutive of the Latin 'luna,' moon.
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