This sounds a lot like optical coherence tomography (OCT), which is essentially laser-based “ultrasound” used to image the inside of retinal tissue. (It’s not actually ultrasound, it’s entirely optical but uses similar principles.)
It’s already a common diagnostic tool used for patients who are at risk for glaucoma. By creating a 3D cross section of the eye’s retinal structures, it lets physicians detect early damage from the disorder, hopefully before any vision loss.
Thanks for linking to that. I had this done a while back but didn't know what it was called or how it worked. If only all imaging techniques were as fast and pleasant this one. It was over in seconds. Although I suppose the small size of retinas likely play a part in that as well.
https://en.m.wikipedia.org/wiki/Optical_coherence_tomography
It’s already a common diagnostic tool used for patients who are at risk for glaucoma. By creating a 3D cross section of the eye’s retinal structures, it lets physicians detect early damage from the disorder, hopefully before any vision loss.