What is it ?

Presbyopia is a progressive loss of the eye’s ability to “focus” (or accommodation) on a nearby object. In case of presbyopia, thevisual acuity closely drop.

Presbyopia, related to age, is a normal process of aging of the eye. It is due to the hardening of the crystalline and a limitation of the system acting on the lens.

One of the first signs of presbyopia is having to stretch out your arms to be able to read a newspaper or a book (a person who reads “normally” has his elbows bent at a right angle, that is to say with the book at 30 or 40 centimeters from his eyes). A person with presbyopia also needs stronger lighting because the more dilated the pupil, the more bothersome the presbyopia.

Presbyopia, which is expressed in diopters, is corrected with glasses or contact lenses. Surgical operations also exist.

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Presbyopia usually appears around 45 years old. At this age, the fine print becomes difficult to read at the end of the day or when the lighting is poor. It then evolves in stages up to 65 years.

Causes

The cause of presbyopia is therefore loss of elasticity of the lens. The muscles that act on this lens become too rigid over the years. The lens can no longer play its role correctly in the accommodation of vision (focusing, as for a camera). The image of nearby objects becomes blurred.

Diagnostic

The ophthalmologist diagnoses presbyopia by an examination of the vision. A visual acuity test (it measures a person’s vision and assesses their ability to focus on an object) from far and near is performed. To check for good eye health, dilation of the pupils so that you can examine the inside of the eye may be necessary.