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.
Is this a sign of an underlying medical condition or just one of those things that happens from time to time? A broken blood vessel in the eye, known medically as a subconjunctival hemorrhage, is a very common and almost always a benign medical problem. However, it is important to get a general check up from a primary care doctor to make sure it's not something serious.