Now Your Eyes Can Zoom With Telescopic Contact Lenses

<div dir="ltr" style="text-align: left;" trbidi="on"> <div class="separator" style="clear: both; text-align: center;"> <a href="https://1.bp.blogspot.com/-esUW0Z02vgc/V3UBZD1BOTI/AAAAAAAABgU/ugGzHTE7nlkwLXolFVPN6R5dDpEi4gr_ACLcB/s1600/Now-Your-Eyes-Can-Zoom-Eith-Telescopic-Contact-Lenses.jpg" imageanchor="1"><img border="0" height="424" src="https://1.bp.blogspot.com/-esUW0Z02vgc/V3UBZD1BOTI/AAAAAAAABgU/ugGzHTE7nlkwLXolFVPN6R5dDpEi4gr_ACLcB/s640/Now-Your-Eyes-Can-Zoom-Eith-Telescopic-Contact-Lenses.jpg" width="640" /></a></div> <br /> Contacts have some clear advantages over eyeglasses, from being impossible to knock off by a hit or fall, to being essentially invisible unlike the edges of the eyeglass lenses. Now, they have just gained a huge new asset.<br /> <br /> We have all seen science fiction films about enhancements to our physiology, and fantasy ones where characters could see in the far distance.<br /> <br /> Now we can finally claim that we have the means to give everyone and their grandmother telescopic vision. Researchers at the Swiss Federal Institute of Technology have introduced contact lenses with zoom support.<br /> The zooming contact lenses<br /> <br /> The brainchild of researcher <span class="highlight pop">Eric Tremblay</span>, the contacts were revealed at the American Association for the Advancement of Science annual meeting in California.<br /> <br /> They are still a prototype, but they can be very useful to counteract age-related mascular degeneration (AMD for short). Age-related muscular degeneration being the main cause behind loss of sight in adults over the age of fifty.<br /> <br /> The lenses have built-in telescopes that can zoom in at 3X. The lenses themselves are rigid, but they are also larger than the normal ones, covering not just the cornea but the sclera as well (the white of the eyes).<br /> <br /> 1.5 mm thick, the lenses have a ring of tiny aluminum mirrors inside, to bounce light around and magnify the view 2.8 times, increasing the perceived size of objects.<br /> <br /> You can switch between normal and zoomed view by winking the right eye, thus interrupting the light being reflexed from the contact to the glasses.<br /> <br /> And thus we reach the main drawback: the contacts don't work alone, but in tandem with <a href="http://www.hackerschronicle.com/search/label/Gadgets">smart glasses</a> which can distinguish between blinks and winks.<br /> <br /> When winking, the light being reflected from the contacts to the glasses is interrupted, activating a polarized filter in the glasses which guides light towards the telescopic part. Winking the left eye resets things to normal view.<br /> Practical applications<br /> <br /> The zooming contact lenses might not be superman-level telescopic vision, especially since they'd work while the Clark Kent persona is active, but they are still a significant achievement. Human tests haven't been carried out yet, however, and the amount of time the contacts can be worn is restricted, for health reasons.<br /> <br /> Source: Softpedia<br /> <br /></div>

Gadgets Technology Wearable Technology Now Your Eyes Can Zoom With Telescopic Contact Lenses

Contacts have some clear advantages over eyeglasses, from being impossible to knock off by a hit or fall, to being essentially invisible...

Read more »

Now Test your eyesight with your smatphone

<div dir="ltr" style="text-align: left;" trbidi="on"> <div class="separator" style="clear: both; text-align: center;"> <a href="http://4.bp.blogspot.com/-P_YKL7Ngtac/Uyk3cjiZLDI/AAAAAAAAAIg/FrDejVaP4Sc/s1600/smartphone+eye+testing.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" height="320" src="http://4.bp.blogspot.com/-P_YKL7Ngtac/Uyk3cjiZLDI/AAAAAAAAAIg/FrDejVaP4Sc/s1600/smartphone+eye+testing.jpg" width="252" /></a></div> Apps and downloads are old hat. The <a href="http://www.hackerschronicle.com/search/label/Mobile">smartphone</a> can now be adapted to test a person's eyes, and is claimed to be India's first mobile phone <a href="http://en.wikipedia.org/wiki/Ophthalmoscopy">ophthalmoscope</a>.<br /> <br /> The phone-cum-scope can capture high-quality photographs of the retina in the eye to detect defects. Converting the smartphone to an ophthalmoscope is quick and easy: fix an LED bulb near the camera of the mobile, a connecting wire and battery. It costs not more than Rs 35-50. The device was invented by ophthalmologists of <a href="http://www.sankaraeye.com/">Sankara Eye Hospital</a>. These pictures can then be sent to doctors for diagnosis.<br /> <br /> "We aren't sure if patients can use it themselves. But it helps eye specialists in rural areas who probably don't have high-end ophthalmoscopes. We are networking with doctors in rural areas who can send us photographs of patients' eyes taken through a mobile phone, that can help evaluate the disorder. We've had cases of eye tumours, glaucoma and other disorders related to the optic nerve, detected through photos taken from mobile phones with a minimum 5-mega pixel camera," said <span class="highlight pop">Dr Divyansh K Mishra</span>, retina fellow, Sankara Eye Hospital, who was one among the doctors who invented the new technique.<br /> <br /> A team of ophthalmologists consisting of <span class="highlight pop">Dr Mishra</span>, <span class="highlight pop">Dr Madhu Kumar</span>, <span class="highlight pop">Dr Rajesh R</span> , <span class="highlight pop">Dr Srinivasulu Reddy</span> and <span class="highlight pop">Dr Gladys Rodregues</span>, led by <span class="highlight pop">Dr Mahesh P Shanmugam</span>, is the think-tank behind this innovation.<br /> <br /> Back in 2002, <span class="highlight pop">Dr Shanmugam</span> had tried taking pictures of eyes through a handycam. "Technology is now advanced and some cell phones have 21 pixels. We won't stop using ophthalmoscopes but this is an added advantage. Eye care field technicians can now immediately diagnose a serious eye condition as they're able to instantly send images of the patient's retina to doctors in the city, via social networking sites," said Dr Mishra.<br /> <h3> MIT's mobile gadget</h3> In 2010, a team of students from <a href="http://web.mit.edu/" target="_blank">Massachusetts Institute of Technology</a> came up with a device to be attached to a mobile phone that can test the visibility of eyes and find out the refractive errors. It was called <a href="http://en.wikipedia.org/wiki/DRDO_Netra" target="_blank">NETRA</a> (Near-Eye Tool for Refractive Assessment). The user has to place the device in front of the eye and look into the lens attached to the phone. While pressing the arrow keys, the user can see green and red lines which overlap. The same process is repeated eight times, with the formation of green and red lines on the screen at different angles. The assessment of the eyes is done based on the visual index and prescriptions are made based on the same. <br /> Source: <a href="http://timesofindia.indiatimes.com/" rel="nofollow" target="_blank">TOI</a></div>

Gadgets Mobile NETRA ophthalmoscope Technology Now Test your eyesight with your smatphone

Apps and downloads are old hat. The smartphone can now be adapted to test a person's eyes, and is claimed to be India's first mo...

Read more »