The study will be a single-visit, in-clinic, prospective observational study followed by three remote time-controlled qu clinical trials

Early presbyopia population characterisation

This study looks at early presbyopia, a common age-related eye condition causing difficulty with close-up vision. Researchers want to understand what makes it hard for some people to swap from single vision to multifocal lenses. It's an observational study for people aged 40-50, lasting a few months.