Sputum, or phlegm, is a mixture of saliva and mucus that youâve coughed up. Blood-tinged sputum occurs when the sputum has visible streaks of blood in it. The blood comes from somewhere inside of your body, either from along the respiratory tract or digestive system. The respiratory tract includes the: mouth. throat.
LASIK surgery is a type of refractive eye surgery. During the procedure, an eye surgeon creates a flap in the cornea, and then uses a laser to reshape the cornea and correct focusing problems in the eye.
During LASIK, the eye is anesthetized with eye drops. Our experienced surgeon will use a laser to create a blade-free flap. The surgeon then lifts the flap back and applies the WaveLight EX500 laser to gently reshape the cornea.