After you fire up the barbecue grill, the charcoal briquettes you use as fuel are eventually reduced to a pile of charred remains and ashes. This residue contains recycled plant material and naturally occurring minerals, but it may also contain harmful chemicals.
Some of the blood in the sclera has turned yellow, like a bruise. Subconjunctival hemorrhage, also known as subconjunctival haemorrhage and hyposphagma, is bleeding underneath the conjunctiva. The conjunctiva contains many small, fragile blood vessels that are easily ruptured or broken. When this happens, blood leaks into the space between the conjunctiva and sclera. Such a hemorrhage may be caused by a sudden or severe sneeze or cough, or due to hypertension or as a side effect of blood thinners.
Bleeding of the eye is usually caused by suffering an injury to the eye. 1  Less common but serious causes of eye bleeds include cancer, malformations of blood vessels in the eye, and irritation and inflammation of the iris (the colored part of the eye.) Small subconjunctival hemorrhages can result from forcefully sneezing or coughing.