STATE OF EMERGENCY
Transparent front part of the eye that covers the iris, pupil, and anterior chamber and provides most of an eye's optical power
It is a collapsed lung where air escapes into the chest every time the patient breathes, as if through a one-way valve.
KCS (keratoconjunctivitis sicca)
In a healthy patient about 55% of blood is a watery fluid that contains many important substances such as glucose, amino acids, hormones, and electrolytes.