Portrait of Ramesh Raskar
Photo: Joi Ito from Cambridge, MA, USASource · CC BY 2.0
Imaging & Audio

Ramesh Raskar

NETRA smartphone eye-test headset

United StatesEvidence: high confidenceChecked July 2026

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Who is Ramesh Raskar?

Ramesh Raskar is an inventor associated with United States. Their documented work in imaging & audio includes NETRA smartphone eye-test headset, the contribution at the center of this evidence-backed profile.

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.

Known forNETRA smartphone eye-test headset
FieldImaging & Audio
Associated withUnited States
Evidence reviewed3 sources
01

What did Ramesh Raskar invent?

Co-invented NETRA, a smartphone-mounted optical device for measuring refractive error.

02

What did Ramesh Raskar accomplish?

MIT reports the smartphone-powered device had completed about 40,000 tests worldwide by 2015.

03

What is known about Ramesh Raskar today?

The Royal Photographic Society’s November 2024 profile documents Raskar receiving its Imaging Science award and discussing current imaging applications.

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