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.
Key Points. 1  Trachoma is a chronic, exacerbating, and remitting chlamydial conjunctivitis that is common among children ages 3 through 6 in certain poverty-stricken areas worldwide. 2  Manifestations develop in stages and include conjunctivitis, formation of tarsal follicles, corneal neovascularization, and scarring.