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- 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)see Diagnosis section for full definition.
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Last updated: January 3, 2015
Kalyani, Sachin. "Macular Edema." Johns Hopkins Diabetes Guide, 2015. Johns Hopkins Guide, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Diabetes_Guide/547087/all/Macular_Edema.
Kalyani S. Macular Edema. Johns Hopkins Diabetes Guide. 2015. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Diabetes_Guide/547087/all/Macular_Edema. Accessed March 22, 2019.
Kalyani, S. (2015). Macular Edema. In Johns Hopkins Diabetes Guide. Available from https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Diabetes_Guide/547087/all/Macular_Edema
Kalyani S. Macular Edema [Internet]. In: Johns Hopkins Diabetes Guide. ; 2015. [cited 2019 March 22]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Diabetes_Guide/547087/all/Macular_Edema.
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