Age-Related Macular Degeneration vs Diabetic Retinopathy
Age-Related Macular Degeneration and Diabetic Retinopathy are easy to mix up on the boards. Here's a side-by-side comparison — presentation, workup, imaging, and first-line treatment — drawn from our full outlines.
Age-Related Macular Degeneration vs Diabetic Retinopathy at a glance
- Age-Related Macular Degeneration: Central retinal degeneration — dry (atrophic) and wet (neovascular) forms; leading cause of central vision loss in older adults.
- Diabetic Retinopathy: Microvascular retinal disease from chronic hyperglycemia — leading cause of new-onset blindness in working-age adults.
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Side-by-side comparison
| Feature | Age-Related Macular Degeneration | Diabetic Retinopathy |
|---|---|---|
| At a glance | Central retinal degeneration — dry (atrophic) and wet (neovascular) forms; leading cause of central vision loss in older adults. | Microvascular retinal disease from chronic hyperglycemia — leading cause of new-onset blindness in working-age adults. |
| Classic presentation | Drusen on fundoscopy in dry AMD; sudden metamorphopsia with subretinal fluid and hemorrhage in wet AMD.; Dry AMD: gradual painless central blurring,… | Dot-blot hemorrhages with hard exudates and microaneurysms in a diabetic; neovascularization of the disc (NVD) in PDR.; Often ASYMPTOMATIC until advanced or… |
| Workup / key labs | Not routinely indicated for diagnosis | ADA / AAO screening: dilated exam at diagnosis in type 2 DM and within 5 years of diagnosis in type 1 (and at puberty), then annually (or every 1-2 years if… |
| Imaging | Dilated fundus examination; Optical coherence tomography (OCT) — primary imaging modality; detects intraretinal/subretinal fluid, drusen, RPE elevation,… | Dilated fundus examination — primary screening tool; Optical coherence tomography (OCT) — quantifies retinal thickness and DME; Fluorescein angiography —… |
| First-line treatment | Smoking cessation — modifiable risk factor with strongest evidence; Mediterranean-style diet rich in leafy greens, fish (omega-3), and colored fruits;… | Optimize glycemic control — target A1c individualized but typically <7% (DCCT, UKPDS); Blood pressure control — typically <130/80 (UKPDS); Lipid management —… |
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