What causes blurry vision?
Blurry vision can be a frightening
experience, particularly if you are used to having clear eyesight that
suddenly loses sharpness and becomes hazy. There are many, many
different causes of blurred vision; in fact,
Healthline.com lists 84 possible reasons and conditions.
Blurry
vision can be caused by anything from a migraine, to a stroke, to a
number of common eye conditions known as refractive errors.
On
rare occasions, blurry vision can also be a sign of a something much
more serious. Some of these conditions (such as a detached retina) are
medical emergencies as they can cause blindness or even death. It’s very
important to
see a doctor if you are experiencing
blurred vision, especially if your vision has changed suddenly and
dramatically and is accompanied by other severe symptoms.
Refractive errors and blurred vision
If
your vision has simply been gradually deteriorating over a period of
time, making it harder and harder for you to see objects either close up
or in the distance (or both), it is more likely that you have an eye
condition that can be treated with contact lenses or glasses. In these
cases, you may be better off seeing an optometrist.
Refractive errors that can cause blurry vision include:
Migraine with aura
Another
common cause of sudden blurry vision is a migraine with ‘aura’. An aura
is the visual disturbance that occurs before the onset of the headache
itself. The aura may take the form of blurry vision, ‘blind spots’ in
your vision, halos and zigzag shapes. This type of blurry vision is
generally harmless and will abate once the headache starts.
Stroke
A
stroke is a much more serious cause of blurry vision and is considered a
medical emergency. A stroke occurs when an artery that supplies blood
to the brain is damaged. This prevents a part of the brain getting
enough oxygen and cells begin to die.
Because a stroke is a
problem with the brain itself, it can manifest various symptoms in
different parts of the body. Signs and symptoms of a stroke include:
- vision that is blurred or blackened, or double vision
- numbness on one side of the body
- slurred speech or difficulty speaking
- general confusion
- loss of balance and trouble walking
- dizziness
- sudden severe headache
- paralysis.
EYESONLINE contact lenses
If
your blurry vision turns out to be caused by a refractive error and
your optometrist gives you a prescription for eyesight correction, you
can buy all your contact lenses online for the cheapest prices available
with EYESONLINE.
Our online store has daily disposable contact lenses and reusable contact lenses, as well as coloured contacts.
|
