Cost-utility analysis of screening intervals for diabetic retinopathy in patients with type 2 diabetes mellitus
Vijan S, Hofer TP, Hayward RA. Cost-utility analysis of screening intervals for diabetic retinopathy in patients with type 2 diabetes mellitus. Journal of the American Medical Association. 2000;283(7):889-896.
These three studies all suggest that patients whose last retinal exam was normal are at very low risk of needing laser therapy within the following 3 years, suggesting that every 2-3 years eye screening for those with previous normal retinal examinations may be more than adequate.
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