A rare case of bilateral central retinal vein occlusion in a patient with Vitamin D deficiency

Abstract

One of the most important differentials for painless sudden loss of vision is CRVO (Central retinal vein occlusion). It is one of the leading diseases causing vision loss especially in elderly population. However, bilateral simultaneous CRVO in a young patient with no other co morbidities is rare. This case illustrates a young male of 40 years with no well-known comorbidities who experienced sudden onset diminution of vision in right eye followed by left eye in 2 weeks gap. No history of smoking, diabetes, hypertension, dyslipidemia or any other systemic disorders. Patient is not on any topical or systemic medications. There was no significant family history.On evaluation of right eye, the BCVA (best corrected visual acuity) was 6/36 and left eye was finger counting 3 meters. Intra ocular pressure in both eyes was 18 mm Hg. Anterior segment showed all normal findings. Dilated fundus evaluation in both eyes showed multiple superficial and deep hemorrhages with hard exudates and macular edema. OCT (Optical Coherence tomography) displayed macular edema in both eyes. Blood investigations showed all values within normal limits except Vitamin D levels which were found to be deficient.

Concomitant Two-Temporal Cilioretinal Artery Occlusion (CLRAO) With Impending Central Retinal Vein Occlusion (CRVO) in a Young Adolescent With Protein C Deficiency: A Rare Case

“…There is debate regarding the pathophysiology of CRVO when coupled with CLRA blockage (CLRAO). However, two theories have been proposed [8,9]. First, the elevated capillary pressure brought on by CRVO is the secondary cause of CLRAO, and second, the primary fall in perfusion pressure of the cilioretinal and retinal arteries causes a decrease in retinal circulation, which in turn causes venous stasis and thrombosis.…”