11/22/2015 Visual Impairment ResearchGlaucoma
A condition where an increase of blood pressure on the eyes causes damage to the optical nerves resulting in impaired vision. Although mainly seen in adults this can also be seen in teens and even babies as you can be born with this problem. Glaucoma comes in 2 forms, "open-angle" which is painless and gradually builds up over time and "closed-angle" that is much more severe and have symptoms such as redness, sudden eye pain, nausea and blurry vision. Diabetic retinopathy A side effect caused by diabetes where small blood vessels in the retina are damaged. This condition gets progressively worse over time and can result in complete blindness, as there and no visible warning signs to this condition in its early stages teens are highly recommended to be undertaking regular eye exams to have a head start of their sight starts to deteriorate. Up to 80% of patients who have had diabetes for 20+ years have been effected by this systemic disease. Amblyopia Amblyopia (or more commonly known as lazy eye) is the most common cause of visual impairment in children. This condition is caused when the eyes have improper communication with the brain. For example, if one eye is better at focusing than the other the brain will make a choice to favourite the strong eye and in turn prevent the weaker eye from developing. Symptoms include headaches, poor vision in one or both eyes, unable to correctly perceive depth and discomfort caused by squinting or tilting of the head. Cataracts Typically developing over the later years of someone’s life (but can occur at a younger age) this condition causes the lens of the eye to become cloudy/opaque. Depending on the size and seriousness of the particular case this can range from not affecting your vision at all to complete blindness. Other symptoms could include double vision, unable to see in dimly lit environments, and appearance of colours seem faded. Achromatopsia Achromatopsia (also known as rod monochromatism and total colour) blindness is a rare eye condition that partly or in some cases completely disables the sufferer the see colour and instead only back, white and shades of grey are visible. This bizarre condition effects approximately 1 in 30,000 people worldwide, complete achromatopsia is much more common than incomplete achromatopsia which is a less dominant condition which allows for some colour differentiation. As well as total black and white vision other side effects can be found with this illness such as sensitivity to light and blurry vision. Comments are closed.
|
Archives
January 2016
Categories |