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.
Tempering glass is the method of strengthening annealed glass. Annealed glass is created by slowly cooling the glass and is ideal when it serves as a cabinet doors and sometimes furniture coverings.While tempered glass and annealed glass are both viable options, annealed glass does lack the safety features of tempered glass.gain, tempered glass should be used when there is a chance of breakage due to impact or moderate heat because of its extreme durability and to reduce damage that could occur. For many jobs, price is a significant factor â and this is where annealed glass has an obvious advantage over tempered glass.