The common cause of sudden painless loss of vision
in an eye or both can be as result of
blockage of blood to the brains, however this just temporal but for
the permanent or complete loss of vision
it could be due to untreated eye infection, plaque blocking blood to the eye
and etc.
The temporal
vision loss is very common in the morning when someone wakes up, this causes as
a result of absent of adequate blood to brain, when you lie down sleeping most
of blood in your body move o the chest region by the time you wake up or stand
up from a long time sitting , the blood has to fastly move to the move to the
brains .
Then what
causes the vision loss, in people with normal blood pressure, the blood will
move to the brains easily, whereas in people with blood move optimally and
problem is notices, whereas in people with low blood pressure, the blood “ is
slowed “ down and will not reach the brains and the head in time, tis cause
issues like lightheadedness, dizziness and temporal loss of vision, the best
solution to this is to follow this measures below:
When you wake
up from sleep do not stand up immediately
Wait for like at least five minutes , so that blood
will circulate all over your body.
When you feel
any dizziness or lightheadedness or loss vision just stand and hold something
for sometime, this little time should be enough for the blood to circulate
through-out your body.
Other cause
of permanent loss of vision cold be
plaque, that block the blood vessel , that carry blood from the eye to the
brain.
For the permanent vision loss; body stroke, acute
glaucoma, diabetic retinopathy , mocular degenerations and cataract.
Permanent loss of vision
Any of the
following ye infection can lead to a
total loss of eye vision, if left untreated.
·
Cataract: this he clouding of the pupil
or the eye lens, the part of the eye that allow light to enter , so that we can
see things, it is like the windown of the eye, it is the part through which
signal from our environment get to the eye. Cataract is the inflammation of a
thing lining over this organ. It state with hazy and then blurry vision and
left untreated, it degenerate to a permanent vision loss. However with surgery
vision can be restored.
·
Glaucoma: this is a damage to the eye
optic nerve, the nerve that receive eye sensory neuron, sorry i am a bit
technical here, what is meant by sensory neurons are light rays emerging from
the object in our environment that are trap by the eye pupil and sent to the
brains to interpret them in form of images of object we see, glaucoma diseases damages this nerves that that
transmit to the eye, most of the type glaucoma do not show any symptoms until
when sudden vision loss start, most of
the time damages causes by glaucoma are irreversible.
·
Detached retina : this is part of the
diseases that causes total and permanent vision loss in humans: it is the is
location of retina from it position, a
retina is very light sensitive organs that receive light impulse and end tem to
the brains trough the optical nerves, when the retina is detached it loss tis
ability and can cause a sudden permanent vision loss.
·
Brain damages from strokes and injuries:
when there is a problems with the brain , the sensory neurons receive through
the retina and taken to the brain cannot be interpreted and we can’t see.
