A cataract is a painless gradual clouding of the eye’s natural lens, which lies behind the pupil and iris.

400,000 people are referred with the condition every year, with an average wait time of 9 months at an NHS hospital.

Optegra Eye Clinic West London has now become the first UK eye hospital group to launch drop-free cataract surgery for NHS patients.

An injection is administered during the procedure.

This means patients won’t need to apply four weeks of several different types of drops at various times of day afterwards.