Optic neuritis with secondary retinal venous stasis in a case of abdominal tuberculosis.

The authors report a case of unilateral optic neuritis along with secondary retinal venous stasis in a patient diagnosed with abdominal tuberculosis. Patient presented with diminished visual acuity, colour perception and Marcus Gunn pupillary response, pointing towards optic nerve involvement. Associated findings of disc edema, dilated and tortuous veins, along with hemorrhages on disc and superotemporal quadrant made diagnosis of retinal venous stasis secondary to optic neuritis imperative. The visual outcome of the patient paralleled that expected with optic neuritis. The authors believe that impairment of retinal venous outflow secondary to optic neuritis is a distinct but a rare presentation.