For healthcare professionals

Evidence of variation: bottles, impacting adherence

There are a large number of generic glaucoma eye drops available - with many different bottles used.

The force required to expel a drop has been found to range from 6.4 to 23.4 Newtons.28

Some bottles exceeded the maximum force that could be comfortably applied by around half the population, which may affect compliance and efficacy.28

Generic eye drop bottles