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 a chronic (long lasting) conjunctivitis caused by one of the types of chlamydia (bacteria). It is common in many parts of the world where people live in areas where good hygiene is not possible and there are many flies. It is spread from one person to another by hands or by flies.