![]() ![]() Glaucoma is a serious, progressive disease that directly affects the optic nerve. A part of the central nervous system, the optic nerve is a major component of the visual system and damage will result in vision loss and blindness. Located at the back of the eye, the optic nerve carries impulses formed by the retina directly to the brain. The Optic Nerve - The Eye/Brain Connector The result is blurry, distorted vision leading to blindness in some cases. New, replacement blood vessels start to grow, but they are misshapen and distorted and can lead to scarring and swelling of the retina. In this case, the tiny blood vessels in the back of your eye deteriorate and leak fluid into and under the retina. Responsible for fine vision and color detail, when the macula is compromised, the result is blind spots, distorted vision, and possible blindness.ĭiabetic retinopathy is a retinal disease that affects aged people who suffer from diabetes. There are a number of serious eye diseases that are directly caused by the degeneration of the retina.Īge-related macular degeneration, or AMD, is a serious eye disease that occurs when the macula, the small central area of the retina, ages and breaks down. With age, the retina wears down and degenerates, severely affecting vision. The retina is made up of nerve cells that receive focused light from the lens, then signals the brain to create images. Cataracts are not painful and can be treated with non-invasive surgery. Although the amount and pattern of cloudiness in the lens, as well as the rate at which it develops, can vary, the result is blurry vision that cannot be corrected with contact lenses or eyeglasses. While there is no surgical treatment for the condition, there are options to help with presbyopia, such as bifocal eyeglasses, contact lenses, or laser vision correction modified for monovision.Ī normal part of eye ageing, cataracts form when the proteins contained in the lens start to break down and clump together, causing cloudy spots throughout the line of vision. This phenomenon is known as presbyopia, a universal condition affecting every person cross-culturally who lives past the age of 45. They must hold the newspaper or book further and further away to see clearly. When we reach the age of around 40, the lens has hardened due to age and can simply no longer focus on near objects as well. Until soon, most people who still can see clearly when viewing distant objects are not able to read print within arms reach. However, around the time of middle school, the ability of the lens to change convexity when viewing distance objects to near objects slowly decreases. And as the lens ages, the ability of the lens to change convexity only gets worse. In most cases, usually before the age of 10, the lens works as it should: the lens changes convexity quickly and our eyes can switch from near to far objects with no complications. This provides us with magnification for close object viewing. Viewing near objects requires an increase in convexity of the lens, creating more focus power. Viewing distance objects requires the eye to relax the lens, decreasing lens convexity, or outward curvature. Much like an artificial lens in a pair of eyeglasses, the lens allows our eyes to focus and unfocus, enabling us to view objects at different distances quickly. One of the eye’s most important parts is a structure called the lens. In order to break this all down, let’s start with some basic eye anatomy. And when one of these structures is threatened by age, our vision becomes compromised.īut is it inevitable that our vision will worsen with age? And what can we expect? The eye is a complicated organ with many structures within it. And unfortunately, this ageing does not exclude the eye and the entire vision system. It is an inevitable fact that as we get older, the body ages. ![]()
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