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Diabetic retinopathy: a review

M L Blom1, W R Green, A P Schachat

  • 1Johns Hopkins Medical Institutions, Baltimore, Maryland.

Maryland Medical Journal (Baltimore, Md. : 1985)
|June 1, 1993
PubMed
Summary

Diabetic retinopathy is a leading cause of blindness in the US. This overview details its risk factors, pathogenesis, pathology, and management strategies to prevent vision loss.

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Area of Science:

  • Ophthalmology
  • Endocrinology
  • Nephrology

Background:

  • Diabetic retinopathy (DR) is the primary cause of new blindness among working-age adults in the United States.
  • Diabetes mellitus significantly increases the risk of developing DR.

Purpose of the Study:

  • To provide a comprehensive overview of diabetic retinopathy.
  • To discuss risk factors, pathogenesis, pathology, and management.

Main Methods:

  • Literature review of risk factors, pathogenesis, pathology, and management of diabetic retinopathy.
  • Synthesis of current understanding of DR mechanisms and clinical approaches.

Main Results:

  • Identified key risk factors: renal disease, hypertension, pregnancy, poor glycemic control (elevated HbA1c), disease duration, and age.
  • Detailed pathogenesis involving aldose reductase, nonenzymatic protein glycosylation, vasoproliferative factors, ischemia, vasodilation, growth factors, and blood rheology.
  • Classified pathology into nonproliferative, preproliferative, and proliferative stages.

Conclusions:

  • Effective management of diabetic retinopathy requires addressing modifiable risk factors.
  • Understanding the complex pathogenesis is crucial for developing targeted therapies.
  • Early detection and timely intervention are essential to prevent blindness from diabetic retinopathy.

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