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.
The term hemorrhage refers to the breakage of tiny blood vessels. Most people do not realize they have a broken blood vessel in their eye until someone tells them or they look in a mirror. This condition is not painful, and typically develops after blunt trauma to the eye. In most cases, treatment is not needed for a subconjunctival hemorrhage.