Risk factors associated with retinal vein occlusion

Area of Science:

• Ophthalmology
• Vascular Medicine
• Cardiology

Background:

• Retinal vein occlusion (RVO) is a significant retinal vascular disease.
• Arterial risk factors play a more critical role in RVO development than venous factors.

Purpose of the Study:

• To investigate the specific risk factors contributing to the initial occurrence of RVO.
• To assess the prevalence of arterial and venous risk factors in RVO patients.

Main Methods:

• A cohort of 100 RVO patients underwent clinical assessments, including blood pressure, BMI, and laboratory tests (homocysteine, antiphospholipid antibodies).
• Carotid ultrasonography was performed on half the patients.
• Control groups from population-based studies and venous thromboembolic disease patients were used for comparison.

Main Results:

• RVO patients exhibited significantly higher blood pressure and hypertension prevalence compared to the general population.
• A substantial portion of RVO patients had undiagnosed hypertension and evidence of subclinical organ damage.
• Homocysteine levels and antiphospholipid antibody prevalence in RVO patients were comparable to those with venous thromboembolic disease.

Conclusions:

• Hypertension is identified as the principal factor in RVO development, with RVO potentially being the initial clinical manifestation.
• Most RVO patients showed signs of underlying atherosclerotic disease.
• Thrombophilia studies were not deemed useful for RVO, while hyperhomocysteinemia and antiphospholipid antibodies were more prevalent than in the general population.