Can macular edema go away?

Sometimes it improves when the cause is treated. Some people need repeat treatment and scans.

How is macular edema diagnosed?

Eye doctors often use optical coherence tomography. This scan shows the layers of the macula and any fluid.

Do eye injections hurt?

Most people feel pressure or a quick pinch. The eye is numbed and cleaned first.

Can diabetes cause macular edema?

Yes. Diabetes can make small retinal vessels leak into the macula [2] .

Condition

Macular Edema

Also known as Macula Swelling, Cystoid Macular Edema, CME, Retinal Swelling, Fluid in the Macula

Updated May 16, 2026·For educational purposes only. Not a substitute for medical advice. See our terms.

Bottom Line

Macular edema is swelling in the central retina. It can blur reading vision, but treatment often helps once the cause is found.

Macular edema means fluid has collected in the macula. The macula is the small central retina area used for sharp vision.

Common causes include diabetes, retinal vein blockage, eye inflammation, recent eye surgery, and wet age-related macular degeneration ¹.

Treatment depends on the cause. Options include anti-leak eye injections, steroid medicine, anti-inflammatory drops, laser, or treating inflammation ².

Common Causes

Macular edema is a sign, not one single disease. Common causes include:

Diabetes. Diabetic macular edema is a major cause of vision loss in diabetes.
Retinal vein blockage. A blocked vein can make vessels leak.
Eye inflammation. Uveitis can cause central retina swelling.
Recent cataract surgery. Cystoid macular edema can happen after surgery ³.
Wet macular degeneration. Abnormal vessels can leak under or within the retina.

Treatment

Treatment starts with the cause. Diabetic macular edema often uses eye injections that block vascular endothelial growth factor (VEGF), a leak signal ⁴.

Macular edema from retinal vein blockage is also often treated with anti-leak injections ⁵.

Swelling after surgery or inflammation may need anti-inflammatory drops, steroid medicine, or uveitis treatment. Your doctor follows thickness on optical coherence tomography scans.

When to Seek Care

Get emergency care for sudden vision loss or a curtain in vision. Call your surgeon the same day for new pain, floaters, or vision drop after eye surgery.

For gradual central blur, book a dilated eye exam soon. Macular edema is easier to treat when the cause is found early.

Common Questions About Macular Edema

No. Macular edema means swelling. Macular degeneration is a different disease, though wet macular degeneration can cause swelling.

Next Steps

1Book a dilated eye exam if reading vision is blurry, wavy, or washed out.
2Ask whether an optical coherence tomography scan shows macular swelling.
3Bring a list of diabetes numbers, blood pressure medicines, and recent surgeries.
4Go to the emergency room for sudden vision loss or a curtain in vision.
5Call your surgeon the same day for new pain or vision drop after eye surgery.

Find specialists for Macular Edema

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