What Are the Symptoms of Presbyopia?
How Does Presbyopia Develop?
Presbyopia is the natural aging process and is therefore not a disease. The flexibility of the natural lens gradually decreases from birth. While we are still young, the lenses in our eyes are still extremely flexible. When focusing in the distance, the lens flattens, whereas it curves to focus up close. This adaptability of the lens is called accommodation. It allows us to easily fixate on both close and distant objects, and depict a sharp image on the retina.
Young People without Presbyopia
With age the lens loses its elasticity by a gradual hardening process and becomes increasingly stiff. This makes the lens loose its ability to adjust for a sharp vision on close objects. In this context we speak of a loss of accommodation in the lens. With the loss of accommodation the lens is no longer capable of sharply depicting images on the center of the retina. The focal point is relocated behind the retina, so that it results in a blurred close up vision.
50+ with Presbyopia