What Causes Bad Eyesight
Have you ever found yourself asking, what causes bad Eyesight. Currently in the second decade of the 21st century, more people are exposed to issues that can cause bad eyesight than in previous ages, especially now that most people spend a tremendous amount of time using information technology.
Not surprisingly, longer life spans and more exposure to those issues have caused more people to acquire this problem. Medical advancements have provided new options to alleviate eyesight problems. However, this does not mean that a person should not worry about the causes of bad eyesight, but should be wary of them instead.
Glaucoma is a major cause of failing eyesight. It is often caused by increased pressure within the eye itself, which eventually causes the vision to become impaired. There are two forms of glaucoma, open-angled and closed-angle glaucoma. Open-angled happens slowly and with little pain, whereas closed-angled happens quickly and with acute pain. Also, closed-angle glaucoma has a number of other symptoms that make it an ocular emergency. In both cases, the disease makes it harder to see over the course of the disease, eventually leading to blindness. Although there are a number of different theories on precisely how they work, there are a number of different ways of dealing with them, from transplants to experimental materials.
Eye strain is another leading issue. Reading used to be the main cause of eye strain because it requires a high level of focus. Reading traditional print has been replaced by computer usage, and most people read or watch things on the internet. In essence, by using one’s eyesight without allowing it to rest or not shifting ranges (such as looking away every so often at something further away), the eyes can lose the ability to focus on objects further away. This deterioration in eyesight is prevalent among scholars, scientists, and other professions where there is a lot of reading and writing. The solution is to simply rest the eyes every so often or to change one’s surroundings, forcing the eyes to focus on objects further away. The association of glasses and being intelligent actually makes sense because reading and writing strains the eyes which can cause someone to require glasses.
Merely aging will also cause some issues. The eye lenses can break down and does not have the flexibility of younger eyes. Besides glasses, there is no real cure for this effect, as any surgery done to correct a problem merely slows it down. Suffice to say that research continues in this area, and there have been some interesting breakthroughs, but it remains mostly in the theoretical realm.
There are now many options to deal with poor eye sight. Glasses offer a wide range of flexibility now that there are so many types and functions within the glasses industry. Additionally, one can get lasic surgery to repair eyes to full 20/20 vision, but there are still some problems with this technology, and it is pretty expensive. Contacts are the most popular solution, as most people do not like to wear glasses every day, for either fashion or utility reasons.