It can take between two to three weeks for an eye hemorrhage to heal, according to MedlinePlus. Redness in the sclera, which is the main symptom of a subconjunctival hemorrhage, resolves on its own within this time period.
There is no treatment necessary for an eye hemorrhage, states MedlinePlus. However, monitoring of the person's blood pressure regularly may be necessary, as hypertension is a possible cause of this eye condition. Other potential causes include eye trauma, an eye infection or a strong sneeze.
A subconjunctival hemorrhage occurs due to a broken blood vessel that bleeds into the area of the eye called the conjunctiva, explains the Mayo Clinic. The conjunctiva is the clear layer of tissue that covers the white part of the eye, which is known as the sclera.