The pathophysiology of this process occurs because the veins above the heart have no valves. A rapid rise in the abdominal pressure induces a rapid rise in the intravenous pressure, and various vessels inside or around the eye may rupture7 . Various straining activities such as heavy lifting, coughing, vomiting, blowing balloons and straining on a stool if constipated frequently lead to subconjunctival haemorrhages.
Most of them were early complications which resolved spontaneously within few days. The most common were hyphaema – 5 cases (12.5%) and anterior chamber shallowing – 2 cases (5.0%), hypotony (without choroidal detachment) – 2 cases (5.0%) and conjunctival wound leaks – 1 case (2.5%). These also involved subconjunctival hemorrhage – 3 cases (7.5%) and transient corneal epithelial defects in 2 eyes (5.0%).
The treatment required to use eyedrops, such as artificial tears, to soothe any scratchy feeling you have in your eye. Beyond that, the blood in your eye will absorb within about one to two weeks, and you'll need no treatment. Ongoing Research is being done at Subconjunctival hemorrhage centres.