These are independent reviews of the products mentioned, but TIME receives a commission when purchases are made through affiliate links at no additional cost to the purchaser.

Today’s standard of care for finding lymph nodes, through which cancers spread, isn’t quite high-tech: clinicians examine samples of body tissue by hand. That’s changing with InVision, a first-of-its-kind microscope that uses shortwave infrared technology to show lymph nodes contrasted against surrounding fat tissue. By enabling more accurate cancer staging, the tool could save lives. “You end up with more suitable treatment plans,” says Jeremy Li, CEO and co-founder of Cision Vision, which launched InVision in April. It is already in major hospital systems across the country, including Stanford and Northwestern.

More Must-Reads From TIME

Contact us at letters@time.com.

Hydration Made Fun
A Modern Flip Phone
A Saliva Pregnancy Test
More Than a Fast Car
A Breakthrough Bassinet
EDIT POST