What are the most common causes of bad sight?
bad vision is usually caused by three primary conditions: nearsightedness, long glance and astigmatism. These three conditions can usually be repaired by prescription or contact lenses. In some cases, depending on the overall health of the individual and the severity of the condition, eye surgery may also be a possibility. This type of poor vision is also referred to as myopia and is considered the most common eye disorder. Usually this may be repaired by prescription or surgical eye wear. This type of condition is called long -standing or foresight or hypermetropia. Sometimes this condition deteriorates with age and is the most common type of problem of vision in People over 40 years of suffering presbyopia usually need only prescription wear to help read small prints.
macular degeneration is a type of eye disease that is the main cause of many cases of poor vision. There areTwo types of macular degeneration, referred to as "wet" or "dry" degeneration. Dry generation is the result of loss of tissue in the retina of the eye. It is believed that wet macular degeneration is caused by the leakage of blood vessels in and around the retina. Both types of macular degeneration are considered to be a deterioration in age -related vision.
Another type of eye state, which is a common cause of poor eyesight, is called astigmatism, a condition related to the shape of the eyeball itself. Normally, their eyes have round forms, but people who suffer from astigmatism have eyeballs that are more like football. This shape causes reflective problems that usually disrupt both long and short vision. People with this condition often have problems with vision, although they are very small children, because the condition is generally present at birth. Astigmatism can usually be corrected by prescription eye wear.
Other causes of poor vision could include loss of vision caused by diabetes, cataracts and glaukOmu. Cataracts and glaucoma are much more common in elderly, although they can occur in any age group. Cataracts are growths on the surface of the eyeball and can usually be removed by surgery. Medical research has not yet found a way to reverse glaucoma. In some cases, this can lead to blindness.