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 window 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.
