Smartphones could be used to scan people’s eyes for early-warning signs of glaucoma – helping to prevent severe ocular diseases and blindness, a new study from the University of Birmingham reveals. 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.

Soundwaves used as a mobile measurement method would detect increasing values of IOP, prompting early diagnosis and treatment.