Retina

As my openion according to CRVO that there is only cause remain is THROMBOSIS but other things like HYPERTENSION, DIABETIES, or VASCULITIS works as a Risk factors so it is written in different articles and boks as these factors as a cause of CRVO if it is right than can we say that the long bone fracture is the cause of CRAO in place of EMBOLI? or is there any difference in cause and risk factor or not?

[Ray T Oyakawa, MD]

CRAO is different from CRVO.  One is arteriole (CRAO) the other is venous. CRAO can be caused by an emboli.

Dr. O.

[taree]

Thanks for response:
Sorry sir, you con't got my point of view, i now about venoule and arteriol but according to my question that i have seen in different articles and books that CRVO caused by HYPERTENSION, DIABETIES AND OR VASCULITIS. Is these are risk factors for CRVO or cause? but as for CRAO we say that it is caused by EMBOLI, not by LONG BONE FRACTURE because it is risk factor for CRAO which is written in different articles and books, than as for as conserend to  CRVO why don't we say that the cause of CRVO is THROMBOSIS, not the HYPERTENSION, DM and VACULITIS these are risk factors for CRVO so sir according to my openion the cause of CRVO is only thrombosis. is that clear. I have for your openion thanks.