Blind People Could See Again Thanks to Novel Technology

 

One of the greatest challenges for scientists remains making blind people see again. Diego Ghezzi, Medtronic Chair in Neuroengineering (LNE) at EPFL’s School of Engineering, has been studying and developing technology to help blind people see. A retinal implant they created works with camera-equipped smart glasses and a microcomputer to form artificial vision.

Ghezzi said, “Our system is designed to give blind people a form of artificial vision by using electrodes to stimulate their retrial cells.”

The camera embedded within the smart glasses records images through the perspective of the wearer’s vision. This information is then transferred to a microcomputer placed in one of the eyeglasses’ end pieces. Light signals are created by the microcomputer and transmitted to electrodes in the retinal implant. When a person wears the glasses, they see a simplified, black-and-white version of the landscape in front of them. When the retinal cells are stimulated, dots and light appear in a simplified way. However, wearers will have to interpret multiple dots of light to decipher shapes and objects.

“It’s like when you look at stars in the night sky – you can learn to recognize specific constellations. Blind patients would see something similar with our system,” said Ghezzi.

The technology has yet to be tested on humans, as the research team needs to be certain of their results first. The engineers developed a reality program that enables patients to see implants in a virtual setting.

Are you looking to improve your vision without glasses or contacts? Contact the eye experts at Rohr Eye & Laser Center today.

Rohr Eye & Laser Center offers the most advanced technology available to provide personalized and extraordinary care to our patients. Whether your goal is to maintain or improve your natural vision, we are here to help you. Call us at 877-579-0202 or visit https://www.michiganlasik.com/ to schedule an appointment today.

Written by the digital marketing staff at Creative Programs & Systems: www.cpsmi.com.

 

Myopia (Short-Sightedness) Linked to Poor Sleep

 

Research from Flinders University in Australia suggests people with myopia (short-sightedness) experience poorer sleep quality than those with normal vision. The study found that people with myopia have more delayed circadian rhythms and reduced melatonin production (a hormone responsible for regulating sleep) compared to people with normal vision. Myopia results in the inability to see objects at a distance. People affected can only clearly see things up close.

Dr. Ranjay Chakraborty, optometrist from the Flinders University Caring Futures Institute, said the study adds to the growing evidence of the potential association between disruption of the circadian rhythm and myopia development. “Disruptions in circadian rhythms and sleep due to the advent of artificial light and the use of light-emitting electronic devices for reading and entertainment has become a recognized health concern in several fields, but its impact on eye health has not been studied extensively. These findings provide important evidence that optimal sleep and circadian rhythms are not only essential for general health, but also for good vision,” Chakraborty said.

Levels of melatonin were measured in participants through saliva and urine samples. In the study, the circadian timing and production of melatonin were measured in both people with myopia and those with normal sight. Melatonin is secreted in our brains soon after dark, peaking around 2 to 4 a.m.

Myopia is the most common vision disorder and, in severe cases, can lead to several blinding diseases in adulthood, such as retinal tear and detachment, glaucoma, or cataracts. Road signs and other long-distance objects are generally difficult for people with myopia to read.

“Because myopia typically develops during childhood, as a next step, we would like to examine circadian rhythm training, total production of melatonin sleep and light exposure at night in young children – the actual target population for myopia prevention,” said Dr. Chakraborty.

“Such a study will provide novel insights into the biological and environmental factors underlying myopia, which will aid in early diagnosis and treatment of myopia in children,” Dr. Chakraborty said.

Myopia doesn’t have to hold you back – talk to the eyecare experts at Rohr Eye & Laser Center today.

Rohr Eye & Laser Center offers the most advanced technology available to provide personalized and extraordinary care to our patients. Whether your goal is to maintain or improve your natural vision, we are here to help you. Call us at 877-579-0202 or visit https://www.michiganlasik.com/ to schedule an appointment today.

Written by the digital marketing staff at Creative Programs & Systems: www.cpsmi.com.