A set of headphones takes text and translates it into speech to provide directions or read signs aloud.
The glasses are also equipped with a compass, a GPS and a gyroscope, a tool that measures the orientation of the glasses.
In the United Kingdom, where the research is taking place, more than 2 million people have impaired vision, and more than 300,000 are registered as blind, due to diseases such as macular degeneration, glaucoma and diabetic retinopathy.
Moving forward, the researchers hope to develop software to provide a range of different functions that testers of the glasses say would be useful.
For example, the glasses could use levels of brightness to show depth. They could detect if a person is present based on his or her movement. In addition, the glasses might be able to read the locations or numbers of buses and provide GPS directions via the headphones.
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