The term hardware refers to the physical components that make up a computer. These components may be mechanical, electrical, electronic or magnetic. The term may also be used to....
Causes and symptoms. The early symptoms of trachoma include the development of follicles (small sacs) on the conjunctivae of the upper eyelids; pain ; swollen eyelids; discharge; tearing; and sensitivity to light.
Trachoma is spread by direct or indirect contact with eye, nose, or throat secretions of an individual with trachoma, or indirectly via flies or other insects carrying those secretions on their legs or bodies. Common denominators are poor hygiene, unsanitary water supplies, and shared towels.