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  • Title: Role of factor V Leiden and prothrombin 20210A in patients with retinal artery occlusion.
    Author: Weger M, Renner W, Pinter O, Stanger O, Temmel W, Fellner P, Schmut O, Haas A.
    Journal: Eye (Lond); 2003 Aug; 17(6):731-4. PubMed ID: 12928685.
    Abstract:
    PURPOSE: Retinal artery occlusion is a common vision-threatening disease. Among other risk factors, coagulopathies leading to a hypercoagulable state have been associated with retinal artery occlusion. Numerous studies have shown that two genetic variants, factor V Leiden and prothrombin 20210A, cause a procoagulant state. However, their role in the pathogenesis of retinal artery occlusion is still unclear. The purpose of the present study was therefore to investigate a possible association between factor V Leiden, prothrombin 20210A, and retinal artery occlusion. METHODS: In the present retrospective case-control study, we studied 136 patients with retinal artery occlusion and 136 age- and gender-matched control subjects. The presence of factor V Leiden and prothrombin 20210A alleles was determined by polymerase chain reaction. RESULTS: The prevalence of heterozygosity for the prothrombin G20210A variant did not significantly differ between patients and controls (three patients vs two controls, P=0.65). Distribution of factor V Leiden genotypes revealed no significant difference among the two groups (heterozygosity: eight patients vs 11 controls, P=0.47). As for other risk factors, arterial hypertension, a history of stroke and myocardial infarction were significantly more frequent in patients than in controls. CONCLUSION: Our data suggest that factor V Leiden and prothrombin 20210A do not play a major role in patients with retinal artery occlusion.
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