I am 28, and my height is1.73 meters with a weight of 75 kilograms. Thanks to almighty God, I am very healthy.I live in an area where dust is rife;as such, when wind blows, along with it some dust particles usually get into my eyes. That causes some irritation for a while but as the irritation disappears after some minutes I don t get that bothered. But now, I am feeling some larger dust particles in my eyes and that is bothering me. Moreover, I noticed recently that a tiny white lining shading a slight peripheral part of the outer black part of my eye[ Just a sort of a white dot on one margin of the outer black part]. It is tiny, but I m worried about its possible expansion. What should I do about these concerns? Apart from that,I have pretty healthy eyes and had no medical related encounter. Thank you so much.