Cataracts are the leading cause of visual impairment worldwide, especially among people over 55 years of age. If the disease is not treated, it can cause blindness.
If the ophthalmologist makes a diagnosis of cataracts, there is no reason to panic too quickly. It can indeed be treated by a surgical procedure consisting in replacing the lens with an artificial lens.
What is cataract?
Cataract is a disorder of the lens of the eye, the lens, which is just behind the pupil. He focuses the images on the retina. These images are transmitted to the brain via the optic nerve. In the event of cataracts, the lens darkens (opacification), causing the transmission of images not very clear to the brain and everything seems more blurred and grayer. Adjusting contact lenses and glasses glasses does not help.
Cataracts usually develop slowly and they does not usually affect both eyes at the same time.
The rate at which the disease develops varies considerably from person to person. It can get worse over a period of a few months or change slowly for several years. In addition, the speed of evolution can vary from one eye to the other. At first, there is usually little discomfort.
• Change in visual acuity and blurred vision, as if the glasses were dirty or scratched, first at a distance, then close up.
• Objects are less well defined and may appear distorted. It is necessary to use more light when reading, the contrast between the letters and the background fades.
• Diffusion or formation of beams that can be compared to those of car fires through a wet windshield.
• Aggravation of myopia.
• Clear eyes blinded more quickly by sunlight or car headlights.
• Colors fade or become lighter.
• Night blindness, poor vision of details at dusk, which is very inconvenient for driving
• Sometimes double vision.