Portable solution right on Que

A new device has gone on sale in the US that will allow patients to track their vision changes using a smartphone.

EyeQue’s Personal Vision Tracker debuted recently at the Consumer Electronics Show in Las Vegas and is a small optical scope based on the inverse Shack-Hartmann principle. It attaches to the screen of a smart phone (pictured left) and allows users to measure their spherical and astigmatism measurements in conjunction with tests in a specially designed app.

These tests produce what the company said was a set of cloud-based ‘eyeglass numbers’ that could be used to order glasses online. It added that these details could not be used in the US to buy glasses where a proof of prescription was needed.