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Latest Visual system Stories

Tadpoles Able To See With Eyes Transplanted Onto Their Back
2013-02-28 10:29:13

Brett Smith for redOrbit.com - Your Universe Online In a study that could have implications for organ transplant procedures, two scientists from Tufts University found that eyes placed on the backs of tadpoles were still capable of vision despite having no direct neural connection to the brain. "A primary goal in medicine is to one day be able to restore the function of damaged or missing sensory structures through the use of biological or artificial replacement components,” said...

New Artificial Retina Partially Restores Sight
2013-02-15 10:56:46

Jason Pierce, MSN, MBA, RN for redOrbit.com — Your Universe Online Today the US Food and Drug Administration (FDA) approved an artificial retina that is the first device of its kind to treat a form of progressive blindness that begins in young adulthood. The device will not completely restore vision, but it does allow the wearer to detect differences in light patterns and some shapes from their environment. The Argus II Retinal Prosthesis System, developed by Second Sight Medical...

Sophisticated Primitive Reflexes And Dizziness
2013-02-15 06:13:06

Michael Harper for redOrbit.com — Your Universe Online Our brains are capable of doing some amazing things. Yet, there are some processes which, while sophisticated enough, are mostly thought of as common and basic. For instance: The reflex which allows us to keep our eyes focused on one point while our heads are moving about. This reflex is called the Vestibular-Ocular Reflex (or VOR), and we share it with most vertebrates. For many years, scientists have believed that this...

2013-02-13 11:44:06

Research led by Minghao Jin, PhD, Assistant Professor of Ophthalmology and Neuroscience at the LSU Health Sciences Center New Orleans Neuroscience Center of Excellence, has found a protein that protects retinal photoreceptor cells from degeneration caused by light damage. This protein may provide a new therapeutic target for both an inherited retinal degenerative disease and age-related macular degeneration. The paper is published in the February 13, 2013 issue of the Journal of Neuroscience....

2013-02-11 10:54:37

Ultraviolet vision evolved at least eight times in birds from a common violet sensitive ancestor finds a study published in BioMed Central's open access journal BMC Evolutionary Biology. All of these are due to single nucleotide changes in the DNA. Modern daytime birds either have violet sensitive or ultraviolet sensitive vision. Being ultraviolet sensitive alters visual cues used to select a mate, avoiding predators, and in finding food. Researchers from Uppsala University and the Swedish...

2013-02-07 15:27:50

Among the animals that are appealing “cover models” for scientific journals, lancelets don´t spring readily to mind. Slender, limbless, primitive blobs that look pretty much the same end to end, lancelets “are extremely boring. I wouldn´t recommend them for a home aquarium,” says Enrico Nasi, adjunct senior scientist in the MBL´s Cellular Dynamics Program. Yet Nasi and his collaborators managed to land a lancelet on the cover of The Journal of...

Studying ACh In Rats
2013-01-24 18:51:34

Alan McStravick for redOrbit.com — Your Universe Online Ivan Pavlov, a Russian physiologist, was instrumental in the formation of the school of study of conditioned response. His work, spanning some 40 years, has pervaded the public consciousness ever since. We are all, in one way or another, unwitting participants in his research. For instance, who among us doesn´t jump up to grab our mobile phone when it dings at us, signaling an incoming text message or e-mail?...

2013-01-17 10:35:47

New research in Nature concludes the eye — which depends on light to see — also needs light to develop normally during pregnancy. Scientists say the unexpected finding offers a new basic understanding of fetal eye development and ocular diseases caused by vascular disorders — in particular one called retinopathy of prematurity that can blind premature infants. The research, led by scientists at Cincinnati Children's Hospital Medical Center and the University of...


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
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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