For those who’ve never experienced this phenomenon, eye
floaters are little oddly shaped objects that appear in your vision, often
when one looks at bright light such as a blue sky. Their shapes vary
greatly, but will often appear as spots, cobwebs, or randomly shaped stringy
objects. These are not optical illusions, but rather something your eyes actually
perceive.
There are a few different things that can cause this, but in most
cases these eye
floaters are caused by pieces of the gel-like vitreous breaking off from
the back portion of your eye and then floating about in
your eye ball
This article help you know answer your question. Let see!
Eye
floaters are small moving spots that appear in your field of vision. They may be
especially noticeable when you look at something bright, such as white paper or
a blue sky.
Eye floaters can be
annoying, but they generally don't interfere with your sight.
Occasionally a particularly
large eye
floater may cast a subtle shadow over your vision. But this tends to occur
only in certain types of light.
Most of the time people
learn to live with eye floaters and ignore them. And they often improve over
months to years. Only rarely do benign eye floaters become bothersome enough to
consider treatment.
Floaters
can occur in a variety of different forms. They may appear as:
·
dots
·
circles
·
lines
·
cobwebs
·
other shapes
You
may have many small floaters in your field of vision or just one or two larger
ones. Most floaters are small and quickly move out of your field of vision.
Larger
floaters can be distracting and may make activities involving high levels
of concentration, such as reading or driving, difficult.
When
to visit your optician
Floaters
are usually harmless and do not significantly affect your vision. However, it's
important you have your eyes checked by an optician regularly (at least once
every two years).
Find
an optician near you.
You
should visit your optician immediately if a new floater suddenly appears, or if
there is a rapid increase in the number of floaters you can see. They may refer
you to an ophthalmologist (a specialist in diagnosing and treating eye
conditions).
Occasionally,
floaters can be a symptom
of retinal tears orretinal detachment. The ophthalmologist will check
for this by examining your retina (the light-sensitive cells at the back of the
eye).
If
your retina is detached, you will usually experience:
·
a large number of floaters
·
bright, flashing lights
·
some loss of vision
If
you think you may have retinal detachment, seek immediate medical attention
from either your GP or optician.
Symptoms
- Tiny
specks of floating material make a sudden appearance in one’s field of
vision. These may be transparent or murky.
- The
floating substances move along with eye movement, making it impossible to focus
on them.
- The
presence of these floaters become more pronounced when looking at radiating or
reflective lights, bright backgrounds (like the clear blue sky), or viewing an
operational computer screen.
- The
specks or other floating shapes will move out of one’s line of vision
eventually.
Causes
of eye floaters
Floaters are caused by small pieces of debris that float in the vitreous humour of the
eye.
They
occur behind the lens and in front of the retina. The lens is a small clear
structure that focuses light as it enters the eye. The retina
is the light-sensitive tissue that lines the inside surface of the
back of the eye.
Floaters
occur as part of the natural
ageing process. Some people may have posterior vitreous detachment (PVD),
which is where the vitreous jelly comes away from the retina (see below). This
may
cause a sudden increase in the number of floaters
Ageing process
As
you get older, your risk
of developing floaters increases. They tend to occur in people over 40
years of age, and are most common in those in their 60s and 70s. However, some
younger people may also develop floaters.
As
you get older, the vitreous humour in the middle of your eyeball can become
softer, and strands of a protein called collagen may become visible within
it. The collagen strands may appear to swirl as your eyes move.
Normally,
light travels through the clear layer of vitreous humour to reach the retina.
The light-sensitive layer of cells at the back of your eye that form the
retina transmit images to your brain via the optic nerve. Any objects that
are in the vitreous humour, such as floaters, will cast shadows onto the
retina.
Posterior vitreous detachment
(PVD)
Floaters
can be a symptom
of posterior vitreous detachment (PVD). This is a common condition that
occurs in around three-quarters of people over 65 years of age. PVD can occur
as the result of changes to the vitreous humour as the eye gets older.
As
your eye ages, the central part of the vitreous humour becomes more liquid and
the outer part, known as the cortex (which contains more collagen), starts to
shrink away from the retina. Floaters develop as a result of the collagen
thickening and clumping together.
As
well as floaters, flashing
lights can be another symptom of PVD. This can occur if the outer part
of the vitreous humour pulls on the light-sensitive tissue of the retina. The
pulling stimulates the retina, which causes your brain to interpret it as a
light signal and creates the sensation of flashing lights.
Retinal
tears
In a
few cases of PVD, when the vitreous humour pulls on the retina, it can cause
the tiny blood vessels in the retina to burst and bleed into the vitreous
humour. The red blood cells may appear as tiny black dots or they may look like
smoke. However, as the blood is absorbed back into the retina, these floaters
tend to disappear over the course of a few months.
In
some cases, the vitreous humour remains attached to parts of the retina and
tears the retina as it pulls away. If the retina tears, blood that escapes into
the vitreous humour can cause
a shower of floaters all at once. You may also see flashes of bright, white
light in your field of vision that look similar to lightning streaks.
It
is important to be aware that flashes in your vision are not necessarily a sign
of retinal tears or retinal detachment (see below). They may have another
cause, such as a migraine with
aura (a headache with a zigzag pattern across your field of vision).
Floaters
and flashes do not usually cause long-term visual impairment. However, if
you experience them, you should visit an optician to have your eyes examined.
Other causes
If
you have had eye surgery, such as cataract surgery, you are more likely to
experience floaters, PVD and, more rarely, retinal
tears and retinal detachment. In some cases, floaters may also be caused
by:
·
infection
·
uveitis
·
eye disease
·
eye injury
Floaters
are also more common in people who have:
·
short-sightedness (myopia) – where
distant objects appear blurred, while close objects can still be seen clearly
·
diabetes – a lifelong condition
that causes a person's blood sugar level to become too high
As floaters
and flashes can be caused by a number of eye conditions, some of which can
affect your vision, it is always best to have your eyes checked by an eye care
specialist. You should also visit a specialist if you have floaters or flashes
that get worse.
Eye Floaters No More is a natural method to cure or reduces
your eyesight problem permanently without spending a huge amount
of money and the risk of surgery. A former sufferer, a professional health
researcher. Daniel Brown helped and brought himself the good eyesight.
This
proven treatment can definitely treat your eyesight
problem for good and remedy the root-cause without any
medicines, the conventional Optometrist treatments, and without side effects.
Then if you are suffering eye floaters, try
it out and you will find it to be your attachment on the way to cure your eye
floaters. This is definitely no risk, no expensive cost, no danger and no
harmful side- effect then no worry or troublesome. Then find out more here
--End--
Không có nhận xét nào:
Đăng nhận xét