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Sleeping in contact lenses
With the abundance of contact lense choices, is it right to sleep in them?
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Light intensity sensors that control body clock are found in eye
They detect the presence and intensity of light. The discovery could lead to treatments of some sleep and mood disorders:
Scientists have discovered the function of a third type of light sensor in the eye -- not vision, but control of the body's internal clock -- opening a new pathway for potential treatments of light-related mood and sleep disorders.
The sensors, found in 2% of retinal cells, are dedicated to detecting the presence and intensity of light through the use of a light-sensitive molecule called melanopsin, researchers reported this week in the journal PLoS ONE.
They found that mice without the sensor were unable to reset their internal biological clocks. The nocturnal animals woke up half an hour earlier every evening, never properly adjusting to a 24-hour day, researchers reported.
Scientists have been searching for light-level sensors since the 1920s, when it was noted that some blind patients' pupils dilated in response to bright light, suggesting the existence of a sensor separate from the rod and cone cells responsible for vision.
Project leader Satchin Panda of the Regulatory Biology Laboratory at the Salk Institute for Biological Studies in La Jolla said that searches of the recently sequenced mouse and human genomes revealed that both contained an extra light sensor gene... [So, I wonder, with all this similarity to mice and the humane genome, why isn't it the evolutionists asking "Are you a man, or a mouse?--Cuz y'know we're "really" just brothers from different mothers, that's all *shrug*" hehehe yeah right] They detect the presence and intensity of light. The discovery could lead to treatments of some sleep and mood disorders: ... more -
What Your Eyes Say About Your Mood
"Has anyone ever told you that you looked sad or tired when you weren’t? If the problem isn’t your mood, it might be your face, according to a study in the medical journal Plastic and Reconstructive Surgery.
Yale University researchers set out to determine how facial features like eyebrow shape, eyelids and wrinkles affect facial expressions. They took a photo of a woman’s eyes and digitally altered it to change the eyebrow or lid shape or add wrinkles. After producing 16 different versions of the same face, they asked 20 study participants to rate, on a scale of 0 to 5, the presence of seven expressions or emotions: tiredness, happiness, surprise, anger, sadness, disgust and fear." "Has anyone ever told you that you looked sad or tired when you weren’t? If the problem isn’t your mood, it might be your face, accord... more -
Artificial cornea to restore eyesight?
Stanford University researchers have developed an artificial cornea, which may enable the blind to once again see the light of day.
Although the cornea is yet to be tested on humans, studies performed on animals have shown promising results. The findings will be published in the June issue of ACS' Biotechnology Progress journal.
According to researcher Curtis W. Frank, the implantable polymer-based cornea, similar to human donor corneas, is made of two interwoven polymer gels that resemble the material used in soft contact lenses Stanford University researchers have developed an artificial cornea, which may enable the blind to once again see the light of day. ... more -
Faking It // Comment Picked for TV
Check out what hynese had to say aftyer watching "Faking It", a pod where Angela Sun undergoes the latest in beauty treatment to give her assets that aren't necessarily hers. Thanks for the upload! http://current.com/items/76339362_faking_it Check out what hynese had to say aftyer watching "Faking It", a pod where Angela Sun undergoes the latest in beauty treatment to give ... more
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AD OCCHI CHIUSI - [Short Film]
Directed by Theo Putzu - Roberto C. Ricci
Sinossi:Una coppia decide di chiudersi in un appartamento con una promessa ben precisa: non uscirne prima di due settimane. Lontani da tutto e da tutti; mentre il mondo, là fuori, “continua a girare”.
Synopsis: A couple decides to make a vow, not to go out until two weeks have gone by. They stay in away from everything and everybody, while the world, outside, keeps on spinning. Directed by Theo Putzu - Roberto C. Ricci ... more -
Botched LASIK Eye Surgery Leads To Corneal Transplant
"The vast majority of the time, LASIK eye surgery works out just fine. Then there are stories like Patrick's. He was a "perfect" candidate for LASIK eye surgery according to both the doctor who performed the procedure and other experts who reviewed his records later. After the procedure, however, he began to lose vision in his left eye, and eventually had to have a corneal transplant. Patrick's detailed account of how LASIK Plus reacted—stringing him along with multiple visits and the wrong diagnoses, misplacing his records, and denying any responsibility—has left him feeling he should share his story with the rest of the world."
I think anyone considering cosmetic surgery on a sensitive part of the body should seriously weight out the pros and cons first. "The vast majority of the time, LASIK eye surgery works out just fine. Then there are stories like Patrick's. He was a "perfect" candi... more -
Colossal squid update: it has colossal eyes
Marine scientists studying the carcass of a rare colossal squid said Wednesday they had measured its eye at about 11 inches across — bigger than a dinner plate — making it the largest animal eye on Earth.
One of the squid's two eyes, with a lens as big as an orange, was found intact as the scientists examined the creature while it was slowly defrosted at New Zealand's national museum, Te Papa Tongarewa.
"It's the largest known eye in the animal kingdom," said Auckland University of Technology squid specialist Kat Bolstad, one of a team of international scientists brought in to examine the creature. Marine scientists studying the carcass of a rare colossal squid said Wednesday they had measured its eye at about 11 inches across — b... more -
Gene therapy breakthrough could give sight to hundreds of thousands
A 17-year-old who was visually impaired has had his vision improved in a pioneering operation carried out by doctors at Moorfields Eye Hospital and UCL.
The London doctors inserted genes into the patient's eyes to correct a genetic fault that stops their retinas detecting light properly.
The procedure was part of a medical trial that started in February of this year which included two other patients who suffer from the condition known as Leber's congenital amaurosis (LCA). The condition is an inherited disorder that causes progressive deterioration in vision and can lead to blindness in teenagers.
The surgery has been hailed as a breakthrough in treating LCA, with Stephen explaining the vast improvements he has benefitted from.
"At first I could not see anything really in the eye that was operated on, but it got much better after a week, then gradually even better until it was back to normal."
A 17-year-old who was visually impaired has had his vision improved in a pioneering operation carried out by doctors at Moorfields Eye... more -
First bionic eyes successfully implanted (with video)
Surgeons have carried out the first operations in Britain using a pioneering “bionic eye” that could in future help to restore blind people’s sight. Surgeons have carried out the first operations in Britain using a pioneering “bionic eye” that could in future help to restore blind p... more
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Hope to blind with successful 'bionic eye' operations
Surgeons have carried out the first operations in Britain using a pioneering “bionic eye” that could in future help to restore blind people’s sight.
Two successful operations to implant the device into the eyes of two blind patients have been conducted at Moorfields Eye Hospital in London.
The device — the first of its kind — incorporates a video camera and transmitter mounted on a pair of glasses. This is linked to an artificial retina, which transmits moving images along the optic nerve to the brain and enables the patient to discriminate rudimentary images of motion, light and dark.
The operations were conducted as part of an international clinical trial of the technology, known as the Argus II retinal implant, which has already proved successful in restoring rudimentary vision to patients who have become blind because of common conditions such as age-related macular degeneration or retinitis pigmentosa. Surgeons have carried out the first operations in Britain using a pioneering “bionic eye” that could in future help to restore blind p... more -
Son's tooth helps man gain vision
This man regained his eye sight by an operation where they place a human tooth in the eye socket to hold up a man made lens...
-Click to read article This man regained his eye sight by an operation where they place a human tooth in the eye socket to hold up a man made lens... ... more -
Blind no more: The old tooth in the eye trick
Works again. This is a truly amazing story.
From Y! News,
"An Irishman blinded by an explosion two years ago has had his sight restored after doctors inserted his son's tooth in his eye, he said on Wednesday.
Bob McNichol, 57, from County Mayo in the west of the country, lost his sight in a freak accident when red-hot liquid aluminium exploded at a re-cycling business in November 2005.
"I thought that I was going to be blind for the rest of my life," McNichol told RTE state radio.
After doctors in Ireland said there was nothing more they could do, McNichol heard about a miracle operation called Osteo-Odonto-Keratoprosthesis (OOKP) being performed by Dr Christopher Liu at the Sussex Eye Hospital in Brighton in England.
The technique, pioneered in Italy in the 1960s, involves creating a support for an artificial cornea from the patient's own tooth and the surrounding bone.
The procedure used on McNichol involved his son Robert, 23, donating a tooth, its root and part of the jaw.
McNichol's right eye socket was rebuilt, part of the tooth inserted and a lens inserted in a hole drilled in the tooth.
The first operation lasted ten hours and the second five hours.
"It is pretty heavy going," McNichol said. "There was a 65 percent chance of me getting any sight.
"Now I have enough sight for me to get around and I can watch television. I have come out from complete darkness to be able to do simple things," McNichol said." Works again. This is a truly amazing story. From Y! News, ... more -
Dating Through the Eyes
You've heard of speed dating, now picture just that, but without having to make conversation. Eye gazing parties are intended to connect people through the gateway to their souls. You've heard of speed dating, now picture just that, but without having to make conversation. Eye gazing parties are intended to conn... more
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All people with blue eyes have one common ancestor?
New study claims that all people with blue eyes share one common ancestor with a single genetic mutation. The study also claims that prior to this one mutation, 6,000 to 10,000 years ago, all people had brown eyes. New study claims that all people with blue eyes share one common ancestor with a single genetic mutation. The study also claims that ... more
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Genetic mutation makes brown eyes blue
People with blue eyes have a single, common ancestor, according to new research.
A team of scientists has tracked down a genetic mutation that leads to blue eyes. The mutation occurred between 6,000 and 10,000 years ago, so before then, there were no blue eyes. People with blue eyes have a single, common ancestor, according to new research. ... more -
Eye think you've got the wrong address...
Imagine the joy of receiving an unexpected gift and then opening it to find it's a human eyeball that's been wrongly delivered to you instead of a needy patient who is waiting for a transplant.
The eyeball was intended for a hospital patient in Hobart, Australia, but was wrongly delievered to a hotel patron randomly. The courier firm who made the 'balls-up' defended the mistake claiming it was down to a "failure in an internal handover process."
Don't worry, the eyeball was recovered and successfully transplanted.
Eye don't know, whatever next? Imagine the joy of receiving an unexpected gift and then opening it to find it's a human eyeball that's been wrongly delivered to you ... more -
One Step Closer to the Bionic Woman
Engineers at the University of Washington have used new techniques to create a flexible, biologically safe contact lens with an electronic circuit and lights. This could offer an opportunity for superhuman vision.
I realize this is just one more step closer to some science fiction-like world where we've create a race of robot/human hybrids that want to destroy us, or something equally sinister but you know what? I totally want these! Engineers at the University of Washington have used new techniques to create a flexible, biologically safe contact lens with an electr... more -
Hello Kitty contacts?
Has the Hello Kitty craze gone to far?
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Eyes
