How accurate is netnetra? NETRA is as accurate as top-tier auto refractors that can cost $45,000. It took 340 product iterations and 35,000 product tests to ensure this level of precision and control accommodation.How much does a netra refraction cost? Netra Refraction Mobilized NETRA is as accurate as top-tier auto refractors that can cost $45,000. NETRA lets you take the reins no matter where you are, from a hospital in the urban jungle to a tent in the Amazon. The smartphone becomes a gateway for information between eye care providers and customers.How does netra work with insight? The smartphone becomes a gateway for information between eye care providers and customers. On the Insight portal, patients and eye care providers navigate health information and converge to the best prescription. Netra can drop from a maximum height of 1 meter without breaking or losing accuracy.How does the netra autorefractor work? For mobile eye diagnostics or vision screenings, the NETRA autorefractor measures sphere, cylinder, axis and pupillary distance through game-like interactions in a VR setting. The binocular, patient-driven exam takes about 2 minutes. NETRA is the only mobile autorefractor with built-in accommodation control.