Retinal Detachment
Surgery types, recovery, NHS vs private options, and FAQs
Overview
Retinal detachment is a sight-threatening emergency in which the retina — the thin layer of light-sensitive tissue that lines the back of the eye — separates from its underlying supportive tissue. When the retina detaches, it is cut off from its blood supply and oxygen, causing the affected photoreceptor cells to begin dying. Without prompt surgical treatment, retinal detachment can lead to permanent vision loss in the affected eye.
Retinal detachment affects approximately 1 in 10,000 people per year in the UK. The most common type, rhegmatogenous retinal detachment, occurs when a tear or hole develops in the retina, allowing fluid from the vitreous cavity to seep underneath and lift the retina away. This is often preceded by a posterior vitreous detachment (PVD), a common age-related change in which the vitreous gel separates from the retina.
Risk factors include high myopia (short-sightedness), previous eye surgery (including cataract surgery), a family history of retinal detachment, eye injuries, and certain retinal conditions such as lattice degeneration. Retinal detachment is more common in people over 50, but it can occur at any age. Recognising the warning signs — sudden onset of floaters, flashes of light, or a shadow across your vision — and seeking immediate medical attention is critical for the best outcome.
Symptoms
- Sudden increase in floaters (dark spots, strings, or cobwebs drifting across vision)
- Flashes of light (photopsia), particularly in peripheral vision
- A shadow, curtain, or dark veil spreading across part of your visual field
- Sudden blurred or distorted vision
- Loss of peripheral vision that progresses towards central vision
- A sensation of heaviness in the eye
When Surgery is Needed
Retinal detachment is a medical emergency that requires surgery as soon as possible. The timing of surgery is critical:
- If the macula is still attached (macula-on detachment), surgery should ideally be performed within 24 hours to prevent the detachment from reaching the centre of the retina, which gives the best chance of preserving detailed central vision
- If the macula has already detached (macula-off detachment), surgery is still urgent and is typically performed within a few days. Visual recovery may be more limited, but surgery can still preserve useful vision and prevent total blindness in the affected eye
If you experience a sudden onset of floaters, flashes, or a shadow across your vision, you should seek immediate medical attention. Contact your nearest eye casualty department (A&E), call NHS 111, or see an emergency optometrist. Do not wait for a routine appointment.
Retinal tears and holes that have not yet progressed to a full detachment can often be treated with laser or cryotherapy as an outpatient, preventing the need for more invasive surgery.
Types of Surgery
Vitrectomy
The most commonly performed surgery for retinal detachment in the UK. The vitreous gel is removed from inside the eye and replaced with a gas bubble or silicone oil that presses the retina back into place. Laser or cryotherapy is used to seal the retinal tear. A gas bubble gradually absorbs over 2-8 weeks; silicone oil may need to be removed in a second operation. Vitrectomy is performed under local or general anaesthesia and takes approximately 1-2 hours.
Scleral buckle surgery
A silicone band or sponge is stitched to the outside of the eye (the sclera), indenting the eye wall inward to bring it closer to the detached retina. This relieves the pulling force (traction) on the retina and allows it to reattach. Cryotherapy is applied to seal the retinal tear. The buckle is usually left in place permanently. This technique is often used for simpler detachments, particularly in younger patients.
Pneumatic retinopexy
A gas bubble is injected into the vitreous cavity of the eye in an outpatient setting. The patient then positions their head so that the bubble presses against the retinal tear, holding the retina in place while laser or cryotherapy seals it. This technique is suitable for specific types of detachment where the tear is in the upper part of the retina. Strict head positioning must be maintained for several days.
Laser retinopexy (for retinal tears)
A laser is used to create small burns around a retinal tear or hole, forming scar tissue that seals the retina to the underlying tissue and prevents fluid from passing through. This is a preventive treatment performed as an outpatient when a tear is detected before a full detachment develops. It takes approximately 15-30 minutes and is performed under local anaesthetic drops.
Cryotherapy (for retinal tears)
A freezing probe is applied to the outside of the eye over the area of a retinal tear, creating an adhesive scar that seals the retina. Like laser retinopexy, this is a preventive treatment for tears or holes detected before a full detachment occurs. It is often used when the tear is in a position difficult to access with a laser.
Recovery
Recovery from retinal detachment surgery varies depending on the type and complexity of the procedure, and whether the macula was detached before surgery.
After vitrectomy with a gas bubble, you will need to maintain specific head positioning (often face-down) for a period of days to weeks, depending on the location of the detachment. This positioning is essential for the gas bubble to support the retina while it heals. You must not fly or travel to high altitudes until the gas has fully absorbed (2-8 weeks), as changes in air pressure can cause the bubble to expand dangerously. Nitrous oxide anaesthesia must also be avoided during this period.
Vision recovery is gradual. If the macula was attached before surgery, most patients regain good central vision within weeks to months. If the macula was detached, some degree of central vision loss may be permanent, though peripheral vision is usually preserved and may continue to improve for up to a year.
You will need to use antibiotic and anti-inflammatory eye drops for several weeks and avoid strenuous activity, heavy lifting, and swimming for 4 to 6 weeks. Follow-up appointments will be frequent in the first few weeks to monitor healing and check that the retina remains attached.
The success rate for retinal reattachment is approximately 85-90% with a single operation and over 95% with further surgery if needed.
NHS vs Private
Retinal detachment surgery is available as an emergency NHS procedure. Because it is a sight-threatening emergency, there is no waiting list — surgery is performed urgently, typically within 24 hours for macula-on detachments and within a few days for macula-off detachments. Emergency retinal surgery is provided by specialist vitreoretinal surgeons at NHS hospital eye departments.
Private retinal detachment surgery is available and may offer faster access to a specific consultant surgeon, more flexible scheduling, and a private room for recovery. Private vitrectomy surgery typically costs from £4,000 to £7,000, depending on the complexity of the case. However, for genuine emergencies, the NHS pathway is well-established and highly effective.
Preventive laser treatment for retinal tears is also available on the NHS and is typically performed within days of diagnosis. Some private clinics offer same-day or next-day retinal tear treatment.
Frequently Asked Questions
What should I do if I think I have a retinal detachment?
How successful is retinal detachment surgery?
Will my vision return to normal after retinal detachment surgery?
Can a retinal detachment happen again?
Why can I not fly after retinal detachment surgery?
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