Bacteria and viruses can infect the conjunctiva. Redness and tearing or discharge are common symptoms, and some people have sensitivity to light. Good hygiene helps prevent the infection from spreading to the other eye or to someone else's eye. Antibiotic eye drops are often given.
Cartilage and Adipose. Cartilage. Cartilage is a specialized connective tissue that provides for both strength and flexibility. It is mainly found in the form of hyaline cartilage (hyalos means glass in Greek), which is so named because of its smooth, glassy bluish-white appearance when fresh.
Advanced cases may require antibiotics or surgery. Normally, the gingivae are firm, tightly adapted to the teeth, and contoured to a point. Keratinized gingiva near the crowns is pink stippled tissue. This tissue should fill the entire space between the crowns. The gingiva farther from the crowns, called alveolar mucosa, is nonkeratinized, highly vascular, red, movable, and continuous with the buccal mucosa. A tongue depressor should express no blood or pus from normal gingiva.