Serious Conditions And Other Factors That Cause Blurry Vision

Glaucoma

Glaucoma is an eye disease that causes optic nerve damage. The optic nerve sends images from the retina to the brain so things can be seen. With glaucoma, eye pressure can damage the fragile nerve fibers of the optic nerve. When an increased number of nerve fibers are impaired, blind spots will start to develop in the individual's field of vision, and this can often include blurry vision at certain points. Once nerve damage and visual loss take place, it is irreversible.

Many patients do not notice these blind spots until an abundance of optic nerve damage has already ensued and when the whole nerve is destroyed, blindness is the result. Glaucoma is a leading cause of blindness in the world, particularly in older adults. The only prevention is early detection and treatment by an ophthalmologist.

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Diabetes

Blurry vision is often a red flag indicating the onset of diabetes. An individual's vision may become blurred as fluid begins to leak into the lens of the eye, making it swell and changing its natural shape. This sudden change makes it difficult for the eye or eyes to focus on objects, which often makes them appear blurry. Blurred vision may also occur for individuals already diagnosed with diabetes, particularly when these patients are beginning insulin treatments. Blurred vision caused by insulin typically resolves itself in a matter of weeks once blood sugar levels begin to stabilize.

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