What is it?

Corneal edema refers to the swelling of the cornea (the clear, dome-shaped outer surface of the eye that helps to see clearly.) This condition is caused by a buildup of fluid in the cornea. When left untreated, corneal edema can lead to cloudy vision.

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Additional names

This group contains additional names:
- Corneal Edema
- Secondary Corneal Edema
- Idiopathic Corneal Edema

Signs & symptoms

A buildup of fluid in the cornea causes vision to blur and cloud. These effects are at their worst when first waking up in the morning but will fade throughout the day as the cornea dries from the eyes being open.
Other symptoms of corneal edema may include:
Rings or halos around light sources
Pain in the eye
The feeling of something stuck in the eye


Diagnosis of corneal edema may include an Ophtalagist examination to look for scars or cloudiness on the cornea. The examination may also include the measurement of the thickness of the cornea by using a device called a pachymeter.


Mild cases of corneal edema may not need any treatment. If there is swelling, the ophthalmologist may recommend saline eye drops.
Suppose swelling becomes severe enough to cause significant vision issues. In that case, surgery may be required to replace the cornea with a corneal transplant, or DESK surgery, which replaces just the endothelial layer.

☝️ This is not a substitute for professional medical advice. Please consult with your physician before making any medical decision.

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