Vision · Age

Presbyopia: why reading up close becomes blurred with age

To see clearly up close, the crystalline lens — the eye’s internal lens — has to bulge in order to focus. With age it hardens and manages this less and less: this is presbyopia, normal and universal. Vary the age:

Sharp near visionamplitude D · 30 years

The crystalline lens

Flexibility of the crystalline lens with age ciliary muscle crystalline lens

Reading a phone at 35 cm

Messages Hello! Appointment? 2 pm, at the practice please confirm practical details overleaf

The nearest reading point

eye

Educational diagram — Dr Moïse Tourabaly, ophthalmologist. For information purposes; it does not replace an examination.