Sonar Device Brings Vision to those Blind from Birth

Researchers at Hebrew University in Jerusalem are developing a sonar-based device that, according to preliminary tests, already allows the congenitally blind to distinguish between different shapes and even to read. Just as shockingly, the device appears to activate areas of the brain that were formerly believed to Continue reading

Special Workshop Allows Even the Blind to Cook

A unique cooking workshop for the blind and the visually impaired took place this week, for the first time in Israel.

The workshop was organized by the volunteer organization Lions and was held in the “Cooking Experience” center, which specializes in cooking workshops for purposes of both fun Continue reading

How Blind Can ‘Read’ Shown in Hebrew University Research

A method developed at the Hebrew University of Jerusalem for training blind persons to “see” through the use of a sensory substitution device (SSD) has enabled those using the system to actually “read” an eye chart with letter sizes smaller than those used in determining the international standard for blindness.

The eight congenitally blind participants in the Hebrew University test group passed the conventional eye-exam of the Snellen acuity test, Continue reading

Silicone Oil May Help Treat Eye Cancer

Silicone oil applied inside the eye can block up to 55 percent of harmful radiation to prevent blindness in patients with eye cancer, a U.S. researcher says.

Dr. Scott Oliver, an assistant professor at the University of Colorado School of Medicine, says eye cancer, a rare but devastating disease, can strike anyone — although fair skin and sun exposure can increase risk — at any time, and treatment often requires radiation that leaves half of all patients partially blind.

Oliver focused on choroidal melanoma of the eye, or uveal cancer, the most common and dangerous form of eye disease, which affects some 2,000 people annually. It can spread quickly to the liver and lungs and often can be fatal.

For treatment, physicians often use plaque brachytherapy in which surgeons attach a gold cap containing radioactive seeds to the white part of the eye.

“Radiation injures blood vessels and nerves in the back of the eye,” Oliver says in a statement. “Half of all patients are legally blind in 3 years in the treated eye.”

Oliver tried several substances to block radiation from striking critical structures while allowing it to hit the tumor.

The study, published in the Archives of Ophthalmology, finds silicone oil — already used to treat retinal detachment — could screen out a majority of harmful radiation.