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.
Should I see an eye doctor? Answer. A broken blood vessel in the eye can look very alarming, but will not cause any damage to your eyesight. What happens is that the conjunctiva contains many small, fragile blood vessels that are easily broken, and the blood is leaked into the space between conjunctiva and sclera. Since conjunctiva does not cover the iris of the eye, it is not possible for the leaked blood to cause damage to your vision.