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.
Burst blood vessel in the eye. Straining, coughing or injuring your eye can sometimes cause a blood vessel to burst on the eye surface, causing a bright red blotch. This is called a subconjunctival haemorrhage.
Subconjunctival haemorrhage (bleeding in the eye) Subconjunctival haemorrhage is bleeding in the whites of the eyes caused by burst blood vessels. A subconjunctival haemorrhage appears as a bright red or dark red patch in the eye. Picture of subconjunctival haemorrhage. Subconjunctival haemorrhage causes.