The inside of the
eye contains a jelly-like substance called the vitreous. Throughout
life this fills the inside of the eye, pressing against the retina.
With age this vitreous jelly changes and begins to turn into liquid.
When this happens it can move away from the retina, and you will notice
it as particles or floaters in the vision, occasionally associated with
some flashing lights. This process is very common and in the majority
of cases, although irritating, is not serious. However, if you notice
floaters or flashes of light for the first time it is very important
that you contact an ophthalmologist urgently to exclude the development
of an associated retinal tear.
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| Detached
Vitreous Gel |
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Ultrasound
image showing detached
vitreous gel |
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Unfortunately
the jelly can occasionally pull on the retina and cause a retinal tear.
This is a potentially serious condition, as it may progress to a retinal
detachment, which can result in damage to your vision. It is extremely important that if you have sudden onset of flashes or floaters that you present promptly to an eye surgeon as a minor procedure in the outpatient department using either laser therapy or cryotherapy can treat the retinal tear and avoid major surgery and the risk of visual loss.”
In the majority of people the floaters fade over a few months and become less troublesome. However, in some patients the floaters persist, obscuring central vision and causing intermittent difficulty with reading. In these patients it is possible to remove the floaters via vitrectomy surgery. This usually results in complete resolution of symptoms. As vitreoretinal surgical techniques have improved over recent years the risk associated with the surgery and the post-operative pain and discomfort has decreased dramatically. It is, therefore, now reasonable to consider vitrectomy surgery to remove floaters and vitreous debris if you are suffering persistent disturbance of your vision which interferes with normal activities such as reading.
Warning signs
Please
contact an Ophthalmologist promptly if:
- You notice a sudden rush of floaters
- A sudden change in, or loss of, vision occurs - or a dark shadow
or curtain appears in your vision
- You notice more flashing lights
This is
important as a retinal detachment may have occurred.
