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LUX VISION · PATIENT GUIDE

Floaters, flashes and PVD

 

What posterior vitreous detachment means and when to seek urgent advice.

 

Mr Mahmoud Rabie · Consultant Ophthalmic Surgeon

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When to seek urgent advice

New flashes or floaters, a sudden increase in symptoms, or symptoms after an eye injury or operation require an urgent retinal examination. A dark curtain or shadow, missing side vision, or sudden loss or worsening of vision requires emergency assessment. Do not wait for a routine appointment.

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What is posterior vitreous detachment?

The vitreous is the clear gel inside the eye. As it changes with age, it can separate from the light-sensitive retina at the back of the eye. This is a posterior vitreous detachment (PVD). The separating gel can sometimes cause a retinal tear.

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What might I notice?

Floaters may look like dots, threads or cobwebs that drift when the eye moves. Flashes are often brief and off to the side. A tear and an uncomplicated PVD can cause similar symptoms.

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Your retinal examination

Mr Rabie checks the retina carefully through a dilated pupil, including its far edges. A scan or ultrasound may be used when helpful. A repeat examination may be advised depending on your symptoms and the findings.

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If floaters persist

Flashes often settle and floaters usually become less noticeable over weeks or months. Vitrectomy is reserved for severe, persistent floaters that substantially interfere with daily life, following a discussion of likely benefit and surgical risk.

 

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