Presbyopia
Presbyopia is a condition that affects nearly everybody in the human race after a period of time as it is a result of the normal process of ageing, just like the graying of the hair. Our eyes contain a crystalline formation called the lens, which is controlled by muscles. The theory is that as we grow older, the elasticity of the lens start to reduce and this creates a problem in which one cannot see correctly and needs to bring something really close to have a look at it. This condition is translated literally from Greek to mean elderly eye as it typifies the act where most elderly persons have to bring a book really close to view anything in it.
Causes
The exact reasons for the condition occurring are not clear and the exact ageing mechanism even less clear but it is quite definite that ageing is the underlying cause. The typical symptoms of this disease is an inability to focus correctly when transitioning between near and far objects and disparities in the perception of the depth of field. There is no real treatment for the condition as it related to the natural degradation in our body but the symptoms of poor eyesight are easily corrected with the use of glasses. For folks that have problems focusing near and far, bifocal lenses is usually the best option. Laser surgery for the eyes is not a useful option. This is because of the time of onset of the disease. Presbyopia usually occurs between the ages of 40 and 50 and will continue to get worse. Most people don’t tend to report the problem until much later. After a certain age, laser surgery to correct the vision is not very effective.
Cure
There are some discussions that abound about eye exercises that can be of help; however, none of these eye exercises have been proven by medical science to be of any value. Eye exercises for presbyopia include focusing on distant objects in varying degrees of light. This is more of an exercise that gets the brain more used to a failing eye rather than being of any benefit to an eye that is already degrading. There is not much evidence of vitamin A being of use during a confirmed case of presbyopia though there is ample evidence to believe that a healthy intake of it during youth goes a long way in a delayed onset.