Smartphones could help to prevent glaucoma blindness
https://www.sciencedaily.com/releases/2021/02/210225143900.htm
Some of the most common eye-related diseases are avoidable and display strong risk factors before onset, but it is much harder to pinpoint a group of people at risk from glaucoma.
Glaucoma is associated with elevated levels of intraocular pressure (IOP) and an accurate, non-invasive way of monitoring an individual's IOP over an extended period would help to significantly increase their chances of maintaining their vision.