There are 17 conditions associated with discharge or mucus in eyes, drainage or pus and yellow eyes. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.
Burning glass. A burning glass or burning lens is a large convex lens that can concentrate the sun's rays onto a small area, heating up the area and thus resulting in ignition of the exposed surface. Burning mirrors achieve a similar effect by using reflecting surfaces to focus the light.
Silicon dioxide is the main ingredient of glass. Glass is made by melting silicon sand (also called quartz sand) with carbon at a high temperature (up to 4000 degrees Fahrenheit). When the glass forms, the mixture releases the carbon and oxygen as a gas (carbon monoxide).lass is made by melting silicon sand (also called quartz sand) with carbon at a high temperature (up to 4000 degrees Fahrenheit). When the glass forms, the mixture releases the carbon and oxygen as a gas (carbon monoxide).