The object
Ramesh Raskar co-invented NETRA, a plastic binocular-like headset that attaches to a smartphone for low-cost refractive eye tests. The physical optical accessory brought measurements formerly requiring specialist equipment to portable settings, and MIT documents both his invention role and the device’s worldwide prototype use.
01
What Ramesh did
Co-invented NETRA, a smartphone-mounted optical device for measuring refractive error.
02
Why it matters
MIT reports the smartphone-powered device had completed about 40,000 tests worldwide by 2015.
03
Living-status check
The Royal Photographic Society’s November 2024 profile documents Raskar receiving its Imaging Science award and discussing current imaging applications.