 [ Symptoms ] how long do subconjunctival hemmorhages normally last before they clear up [ Disease ] depending on the extent of the subconjunctival hemorrhage the body will reabsorb this blood relatively fast but it could take a week or more before all of the residual blood has completely gone it will be bright red at first turn to a brownish color then tan and then gone the time it takes for this to resolve is not unlike a bruise on your skin it just shows up more evident in the eyes there is little that you can do to speed up this process