Trachoma (Chlamydia trachomatis serotype A-C) is rare in temperate countries. In endemic regions (warm climates, poor standard of living, and poor hygiene), it is among the most frequent causes of blindness (see Table 4.2 for symptoms, findings, and therapy). Left untreated, the disorder progresses through four stages (Fig. 4.14):

❖ Stage I: Hyperplasia of the lymph follicles on the upper tarsus.

❖ Stage II: Papillary hypertrophy of the upper tarsus, subepithelial corneal infiltrates, pannus formation, follicles on the limbus.

❖ Stages III and IV: Increasing scarring and symptoms of keratoconjunctivitis sicca. The progression is entropion, trichiasis, keratitis, superinfection, ulceration, perforation, and finally loss of the eye.

Diabetes 2

Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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