Answer:
They can sau that they did their best and now they have to live with the consequences.
Explanation:
Something may irritate it and the reaction the eye has is that it burns. Let's say something got in it, then it burns because something is touching the eye that irritates it and it burns.
Yes they both are common and hereditary. If a mother has Diabetes or the gene that carries cancer then it is in fact hereditary.
Hope this helps