Tuesday, March 31, 2015

Antibiotics for MRSA

This is interesting. Much like Traditional Chinese Medicine, some of the remedies seem to work but without any scientific proof. Now we have a potential cure with an ancient "antibiotic":

"A 1,000-year-old Anglo-Saxon remedy for eye infections has been found to be effective against antibiotic-resistant superbugs, researchers from the University of Nottingham said on Monday. The scientists recreated a 9th Century remedy to treat styes.

"The age-old remedy called for "cropleek and garlic, of both equal quantities, pound them well together … take wine and bullocks gall, mix with the leek … let it stand nine days in the brass vessel," according to the New Scientist."

So far, it works on MRSA-infected mice.

Thursday, August 14, 2014

Printed eyes

CNN 4/17/2014: Batch-printing of up to 150 prosthetic eyes an hour has become a reality according to UK-based company Fripp Design and Research. The mass-production technique promises to speed up the manufacture of eye prostheses and drive down the cost. Printing each eye with slight variation in color is intended to produce better aesthetic results.

Thursday, July 10, 2014

FingerReader

Scientists at the Massachusetts Institute of Technology are developing an audio reading device to be worn on the index finger of people whose vision is impaired, giving them affordable and immediate access to printed words.

The so-called FingerReader, a prototype produced by a 3-D printer, fits like a ring on the user’s finger, equipped with a small camera that scans text. A synthesized voice reads words aloud, quickly translating books, restaurant menus and other needed materials for daily living, especially away from home or office.

The opposing view? Here:

The road to hell is paved with good intentions. Do the blind really want an audio reader? Most non-blind or hearing impaired do not understand the culture that lies in these communities, and are treated with a parental nurturing philosophy that borders on being totally insensitive to the needs of these communities. Did any one of these Samaritans ever ask the blind if they even want this. As far as I know most blind would prefer to read from a brail [sic] book, their second choice is an audio reader. When it comes to brail [sic] it is hard to create a page with a large array of dimples that would allow the blind freedom of reading (books, newsprint and leaflets). The visual impaired have a greater tactual sensitivity than all sighted people could never have, not understanding this aspect of their lives means not understanding the community you are trying to aid. 

As far as computers is concerned, they have their own text to audio readers; which just needs to be switched on.

Wednesday, June 11, 2014

Mini-retina

In another step toward reversing degenerative vision loss, scientists said Tuesday they had coaxed stem cells into growing into a tiny, light-sensing retina in a lab dish.

The study is an important technical feat in using reprogrammed cells [i.e., iPS cells], whose discovery in 2006 [in Japan] has unleashed huge interest, they said.

“We have basically created a miniature human retina in a dish that not only has the architectural organization of the retina but also has the ability to sense light,” said Valeria Canto-Soler of Johns Hopkins University School of Medicine, Baltimore.

“Is our lab retina capable of producing a visual signal that the brain can interpret into an image? Probably not, but this is a good start,” Canto-Solder said in a press release.

Friday, February 7, 2014

When buying fish

News today: "...a fish with cloudy eyes is an indication that it is well past its prime. Your fish should also have bulging eyes. Eyes that are sunken reveal a dehydrated fish, which means it spent more time on ice than in the water before you made your purchase."

Cloudy eyes = cloudy corneas =  corneal edema = dead endothelium

Yep, not fresh enough for people with more sensitive palate.

Fish covered with ice, not on ice, are rarely dehydrated. Those with sunken eyes probably smell too fishy already, they should be avoided indeed.

Thursday, January 23, 2014

GlassesOff app

http://www.glassesoff.com/
A new app called GlassesOff claims to be able to improve your vision, eliminating the need for reading glasses for sufferers of the near universal condition called presbyopia (from the Greek for aging eyes). The condition hits nearly everyone -- an estimated 1.2 billion sufferers are predicted by 2020, according to one study.
Source: here


Friday, January 17, 2014

Google contact lens

Google is developing smart contact lenses that measure the glucose levels in diabetics' tears.

Comment: All contact lenses have the potential of impeding corneal access to air/oxygen. This changes glucose metabolism big time. Also, the tear turnover rate may vary from individual to individual. Much remains to be done before this smart lens becomes practical.