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Hashemi Eye Care - Neuroscience Institute and Research Center

Retinal Detachment

A sight-threatening emergency where the retina separates from the back of the eye. Learn warning signs, risk factors, and why immediate treatment is critical.

7 min read

Retinal detachment occurs when the retina—the light-sensitive layer at the back of your eye—separates from its underlying support tissue. This is an ocular emergency. Without prompt treatment, retinal detachment leads to permanent vision loss. Knowing the warning signs can save your sight.

Key Takeaways

  • Retinal detachment is a medical emergency—seek care immediately
  • Warning signs: new floaters, flashes of light, shadow or curtain across vision
  • Risk factors include high myopia, previous eye surgery, trauma, and family history
  • Treatment is surgical—earlier treatment means better visual outcomes
  • The macula matters—if central vision is still intact, urgent surgery may preserve it

Patient point-of-view illustration of retinal detachment showing a dark curtain-like shadow encroaching from the periphery across the visual field with floaters and a flash of light

Warning Signs

Types of Retinal Detachment

Rhegmatogenous (Most Common)

  • Caused by a tear or hole in the retina
  • Fluid passes through the tear and separates the retina
  • Often preceded by posterior vitreous detachment (PVD)
  • Most common type, especially in nearsighted individuals

Tractional

  • Scar tissue on the retina pulls it away from underlying tissue
  • Common in diabetic retinopathy
  • May occur after other retinal diseases or inflammation

Exudative (Serous)

  • Fluid accumulates under the retina without a tear
  • Caused by inflammation, injury, or vascular abnormalities
  • No retinal break present

Risk Factors

  • High myopia (nearsightedness)—significantly increased risk
  • Previous retinal detachment in either eye
  • Previous eye surgery including cataract surgery
  • Lattice degeneration—thin areas in peripheral retina
  • Previous retinal tear
  • Posterior vitreous detachment

Other Factors

  • Family history of retinal detachment
  • Eye trauma or injury
  • Age—more common after age 40
  • Certain inflammatory conditions
  • Diabetes (for tractional type)

Symptoms in Detail

Early Symptoms

  • Sudden appearance of many new floaters
  • Light flashes, especially in peripheral vision
  • Flashes may be more noticeable in dark environments

Progressing Detachment

  • Shadow or curtain appearing at edge of vision
  • Shadow may spread across visual field
  • Blurred vision
  • Distortion of images

Macula Involvement

  • If central retina (macula) detaches, central vision is affected
  • Sudden significant decrease in visual acuity
  • Macula-on vs. macula-off status affects prognosis and urgency

Diagnosis

Comprehensive Eye Examination

Imaging Studies

Treatment

Retinal detachment requires surgical treatment. The approach depends on type, location, and extent.

Pneumatic Retinopexy

  • Office-based procedure for select cases
  • Gas bubble injected into eye
  • Bubble pushes retina back into place
  • Laser or freezing seals the tear
  • Requires specific head positioning for days
  • Best for small, single tears in upper retina

Scleral Buckle

  • Surgical procedure performed in operating room
  • Silicone band placed around eye
  • Indents eye wall to bring it closer to detached retina
  • Combined with drainage of fluid and laser/cryo treatment
  • Permanent implant remains in place

Vitrectomy

  • Surgical removal of vitreous gel
  • Fluid drained from under retina
  • Laser treatment to seal tears
  • Gas bubble or silicone oil placed to hold retina
  • May require face-down positioning after surgery
  • Often combined with other techniques

For Tractional Detachment

  • Vitrectomy to remove scar tissue
  • Careful membrane peeling
  • Treatment of underlying cause (e.g., diabetic retinopathy)

For Exudative Detachment

  • Treatment of underlying cause
  • May include steroids or other medications
  • Surgical intervention less common

What to Expect After Surgery

Immediate Recovery

  • Eye patched for first day
  • Eye drops for weeks to months
  • Activity restrictions
  • Head positioning if gas bubble used
  • Vision initially blurry

Gas Bubble

  • Vision very blurry while bubble present
  • Cannot fly or go to high altitude until bubble absorbs
  • Bubble gradually shrinks over 2-8 weeks
  • Vision improves as bubble absorbs

Silicone Oil

  • May remain for months
  • Requires second surgery for removal
  • Used for complex detachments

Visual Recovery

  • Vision improvement gradual over weeks to months
  • Final vision depends on macula status before surgery
  • Some patients regain excellent vision
  • Others have permanent vision loss despite successful surgery
  • Glasses prescription may change

Prognosis

Factors Affecting Outcome

  • Macula status—best outcomes if macula still attached
  • Duration of detachment—earlier treatment is better
  • Extent of detachment—smaller detachments fare better
  • Presence of scar tissue (PVR)—complicates treatment
  • Underlying cause

Success Rates

  • Single surgery reattaches retina in approximately 90% of cases
  • Some cases require multiple surgeries
  • Anatomical success doesn't guarantee visual recovery
  • Vision may not return to pre-detachment levels

Prevention

You cannot completely prevent retinal detachment, but you can:

  • Get prompt evaluation for new floaters or flashes
  • Have regular dilated eye exams especially if high-risk
  • Wear protective eyewear during high-risk activities
  • Control diabetes to reduce tractional detachment risk
  • Know your risk factors and warning signs

If you've had retinal detachment in one eye, your risk is increased in the other eye. Regular monitoring of both eyes is essential.

Frequently Asked Questions

How quickly do I need treatment?

Immediately. Retinal detachment is an emergency. If your macula is still attached ("macula-on"), surgery within 24-48 hours gives the best chance of preserving central vision. Even with macula involvement, earlier surgery is better.

Can retinal detachment be treated with medications or eye drops?

No. Retinal detachment requires surgical treatment. There are no medications that can reattach the retina.

Will I regain my vision after surgery?

It depends on several factors, particularly whether your macula was detached. Many patients have good visual recovery, but some have permanent vision loss even with successful surgical reattachment. Your surgeon can discuss your specific prognosis.

What causes the floaters and flashes before detachment?

Usually posterior vitreous detachment (PVD). As the vitreous gel separates from the retina with age, it can pull on the retina causing flashes and floaters. Sometimes this pulling creates a retinal tear.

Can retinal detachment happen again?

Yes. Having had retinal detachment increases your risk for another, either in the same eye or the other eye. Regular monitoring is important.

How long is recovery?

Initial healing takes several weeks. Visual recovery can continue for months. If a gas bubble was used, you'll have activity and travel restrictions until it absorbs (typically 2-8 weeks).

References

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