Antiphospholipid antibodies and lupus
anticoagulant have been associated with retinal vascular
thrombosis. The presence of antiphospholipid antibodies is most
frequently detected by a false positive test for syphilis, positive
lupus anticoagulant, and the presence of IgG anticardiolipin.
The lupus anticoagulant causes increased
aPTT and Russel viper venom time.
