Blindness Causes

There are different levels or variations of blindness that measure how serious the condition can be. To be totally blind means zero perception of light and form. There are blind individuals who can discern dark from light but see nothing else. There are also individuals who have a very limited amount of sight but are considered legally blind. There are a variety of blindness causes that may be to blame for vision loss. For some blindness is a condition that exists since birth, for others it is a condition that occurs during childhood or adulthood as the result of a disease, disorder or injury.


There are also various causes of sudden onset and temporary blindness, including neurological and cardiological factors. Also, there are certain medications such as those used for erectile issues that may lead to sudden but temporary loss of vision in men who fit a certain risk profile. There are more than 1.3 Americans who fit the definition of legally blind. Because of this high number there are many resources for these individuals including associations, organizations, schools and service animals.

When it comes to what leads to this visual impairment problem, cataracts tops the list as a main cause. Glaucoma, uveitis and macular degeneration due to aging are all commonly reported causes of blindness. Also reported is corneal opacity and diabetic retinopathy as potential causes. In countries where parasitic infection is common blindness can be caused by this or even by malnutrition. This is why residents of third world countries, including children, have higher rates of blindness caused by something that could be easily treated in the U.S. The World Health Organization reports that there are more than 161 million sight impaired individuals across the globe.

In order to understand blindness causes more thoroughly speak to your physician or eye doctor. If you experience sudden blindness or temporary blindness, seek emergency medical care immediately. If you feel your eyesight is getting worse gradually, this is also a problem that must be addressed. At your annual eye exam your optometrist will examine your vision and see if it has changed since your last appointment. There are treatments and aids for individuals experiencing sight loss. You should not have to suffer with deteriorating vision, nor should you ignore any sight-related symptoms.



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