| Diabetic Macular Edema
- Most frequent cause of decreased vision in patients with nonproliferative
- Clinical features:
- Symptoms: decreased vision
- May present as noncystoid or cystoid macular edema
- In noncystoid edema, the retina at the posterior pole appears
thickened and fluorescein angiography demonstrates intraretinal
leakage during the late phase
- In cystoid edema, diffuse retinal thickening at the foveal
usually associated with microcysts and fluorescein angiography
demonstrates flower-petal pattern of leakage at the fovea during
the late phase
- Resorption of the edema commonly results in precipitation of
lipid residues beneath the sensory retinal which can be observed
as white to yellow deposits of hard
- Control diabetes, blood pressure and serum lipid profile.
- Focal laser photocoagulation in a clinically significant macular
- Consider vitrectomy if tractional component present or refractory
to other treatment modalities.
- Follow-up 2-4 months after treatment of the macular edema,
if persists, consider retreatment.
- Recent advance: consider intravitreal or subtenon corticosteroid
injections in refractory cases.
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