Statistics no lie: after 65 years of age, Most people He will fight for visual focus on close -up objects. Perhaps you saw it among your friends and relatives, and even experienced it yourself by holding books, magazines or phone further from the face to focus on words and photos. Many people who have touched begin to apply reading glasses. But fresh treatment can become: eye drops.
This deterioration of vision is called Presbyopia. This is not a disease, but a natural, physiological change caused by aging – especially due to loss of elasticity and flexibility crystalline lens At the front of the eye, which impairs the ability to change the curvature of the lens to focus objects. This stiffening begins in middle -aged and tends to stabilize about 65 years. In the case of people with myopia or myopia who are clearly trying to see distant objects, the beginning of Presbyopia may initially improve the vision by compensating for their existing state. In the case of people with far -sightedness or hyperopia, the effects of presbyopia often occur earlier than in the rest of the population.
Living with pressure can cause fatigue and headaches, and in scarce cases double vision, but in general it is not something to worry about. But improving it can facilitate daily activities and assist maintain good quality of life. Classic correction means are reading glasses, although in some cases people choose eye surgery – laser refractive surgery to transform the cornea to compensate for the loss of the flexibility of the lens or intraocular surgery to replace the artificial lens. The latter is often proposed when there is also some cloudiness in the lens (cataracts).
But recently, scientists have worked on visual drops, which in various ways depending on the vigorous ingredient improved close focus. Two types were approved by the American Food and Drug Agency: one based on a substance called aclidine, the other on Pilocarpin.
Pilocarpina is a molecule of stars, with many attempts in fresh preparations. It is a natural alkaloid, which affects the parts of the nervous system, which has an impact in the eye, induction of meo – narrowing of the pupil diameter – and ciliac spasm, the muscle ring that controls the shape of the lens. Two combined effects improve the flexibility of the lens and the ability to focus on nearby facilities.
Recent test Carried out in Argentina tested the fall of the eye of pilocarpine at various concentrations (1 percent, 2 percent, 3 percent) in a combination of diclofenac, nonsteroidal anti -inflammatory, which soothes the negative effects of pilocarnin, such as irritation and discomfort. (Pilocarpin eye drops approved by FDA are focused on 1.25 percent).
In a two -year retrospective study of 766 people, middle -aged 55, scientists found that eye drops enabled most patients to improve their sight. “Our most important result has shown a quick and permanent improvement near vision for all three concentrations,” said the main researcher Giovanna Benozzi presenting Research at the 43rd Congress of the European Cataract Society and Refraction Surgeons.