4 ms·
In the USA, most people today try on lenses until they find one that fits. Where do you use a laser to measure the eye?
by tamana 10y ago
In the USA, most people today try on lenses until they find one that fits. Where do you use a laser to measure the eye?
- schoen 10y agoThey do have a machine to estimate the necessary correction by physical analysis of the eye: https://en.wikipedia.org/wiki/Autorefractor https://en.wikipedia.org/wiki/Autorefractor (But maybe "laser" was meant as a metaphor above?)