Retinal vein occlusion and transient monocular visual loss associated with hyperhomocystinemia.
OBJECTIVE
To report a 24-year-old man with bilateral central retinal vein occlusions who had preceding episodes of prolonged transient monocular visual loss during which ophthalmoscopic findings were not suggestive of vein occlusion.


METHODS
Case report.


RESULTS
Extensive hematologic studies for causes of vein occlusion were unremarkable with the exception of increased plasma homocysteine in the patient and in his asymptomatic father.


CONCLUSIONS
Impending vein occlusion should be considered in the differential diagnosis of transient monocular visual loss regardless of ophthalmoscopic appearance, and hyperhomocystinemia should be considered as a possible cause of retinal vein occlusion.
Biousse
V
V
Department of Ophthalmology, Emory University School of Medicine, Atlanta, GA, USA.
Newman
N J
NJ
Sternberg
P
P
D000328:Adult; D003937:Diagnosis, Differential; D005654:Fundus Oculi; D006711:Homocystine / Q000097:blood*; D006801:Humans; D008297:Male; D012170:Retinal Vein Occlusion / Q000175:diagnosis / Q000209:etiology*; D014786:Vision Disorders / Q000175:diagnosis / Q000209:etiology*; D015349:Vision, Monocular
D006711:Homocystine