Macular Edema is a topic covered in the Johns Hopkins Diabetes Guide.

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DEFINITION

  • The macula is a small and highly sensitive part of the retina, located roughly in the center of the retina and just temporal to the optic nerve.
  • Macular edema occurs due to fluid and protein leaking from blood vessels within the macula causing it to swell and thicken.
  • Focal macular edema is caused by foci of vascular abnormalities, primarily microaneurysms, which tend to leak fluid.
  • Diffuse macular edema is caused by dilated retinal capillaries in the retina.
  • Clinically significant macular edema (CSME) was defined by the Early Treatment Diabetic Retinopathy Study Group (EDTRS)[6]see Diagnosis section for full definition.

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Last updated: January 3, 2015

Citation

TY - ELEC T1 - Macular Edema ID - 547087 A1 - Kalyani,Sachin,M.D. Y1 - 2015/01/03/ PB - Johns Hopkins Diabetes Guide UR - https://www.unboundmedicine.com/medline/view/Johns_Hopkins_Diabetes_Guide/547087/all/Macular_Edema ER -