Scientists in Christine Hendon’s and Michal Lipson’s research groups at Columbia University, New York, have used a microchip to map the back of the eye for disease diagnosis.
The interference technology, like bat sonar but using light instead of sound waves, used in the microchip has been around for a little while. This is the first time that technical obstacles have been overcome to fabricate a miniature device able to capture high quality images.
Ophthalmologists’ current optical coherence tomography (OCT) devices and surveyors’ light detection and ranging (LIDAR) machines are bulky and expensive. There is a push for miniaturization in order to produce cheap handheld OCT and LIDAR small enough to fit into self-driving cars.