Eye surgery, including cataract surgery, can increase your risk of developing macular edema due to blood vessels becoming irritated and leaking fluids. Macular edema that develops after cataract surgery is called cystoid macular edema (CME).  

Some of the other macular edema causes include:

  • Age-related macular degeneration
  • Uveitis
  • Retinal vein occlusion
  • Blockage in the small veins of the retina, due to radiation, macular telangiectasis
  • Side effects of certain medications
  • Certain genetic disorders, such as retinoschisis or retinitis pigmentosa

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