Injuries to the Lacrimal System

Etiology: Lacerations and tears in the medial canthus (such as dog bites or glass splinters) can divide the lacrimal duct. Obliteration of the punctum and lacrimal canaliculus is usually the result of a burn or chemical injury. Injury to the lacrimal sac or lacrimal gland usually occurs in conjunction with severe craniofacial trauma (such as a kick from a horse or a traffic accident). Dacryocystitis is a common sequela, which often can only be treated by surgery (dacryocystorhinostomy).

Clinical picture: See Chapter 3 for dacryocystitis. See Fig. 18.3 for avulsion of the lower lacrimal system (avulsions in the medial canthus).

Treatment: Lacrimal system injuries are repaired under an operating microscope. A ring-shaped silicone stent is advanced into the canaliculus using a special sound (Figs. 18.3b - f). The silicone stent remains in situ for three to four months and is then removed.

U Surgical repair of eyelid and lacrimal system injuries must be performed by an ophthalmologist.

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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