People wearing Google Glass might experience significant blind spots on their right side, which could interfere with tasks such as driving, crossing streets and playing sports, US researchers said on Tuesday.
Only three people were included in the analysis of the technology — which provides online access via a tiny screen attached to a spectacle frame — published in the Journal of the American Medical Association.
The findings showed “significant” obstruction in peripheral vision on the right side, where the device is mounted, the article said.
Researchers said further study in a larger pool of wearers is needed.
“To our knowledge, this is the first evaluation of the effect of wearable electronics with head-mounted display on vision,” said the researchers, who are based at the University of California, San Francisco. “The device created a clinically meaningful visual field obstruction in the upper right quadrant.”
The blockage was due to the thick strip of material along the right side of the wearable device, not due to any distraction by the software, the scientists said.
Three men were part of the study. All have 20/20 vision.
Visual tests, as well as an analysis of 132 images on the Internet of Google Glass being worn, showed that the gear lined up with people’s eyes in such a way that it obstructed their field of view.
In the study, wearers took visual tests with the Google Glass in place, and then again wearing conventional eyeglass frames.
“Conventional spectacle frames can reduce visual field, sometimes causing absolute blind spots, and head-mounted devices have even more pronounced frames,” the article said.
Google Glass became available in the US in May for US$1,500.
In related news, LG Electronics Inc said yesterday it had signed a long-term cross-licence deal with Google Inc as LG tries to expand its smartphone business.
The deal covers patents on a “broad range of products and technologies” that already exist and will be filed in the next 10 years, the two firms said in a joint statement.
Samsung — LG’s home rival and the world’s top smartphone maker — earlier struck a similar deal with Google in January.
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