Symptoms can be serious, and the disease can be fatal â especially for babies, the elderly, and people with weakened immune systems. When influenza pandemics occur, they spread quickly, often killing large numbers of previously healthy people. From 1918 to 1919, a flu pandemic hit the U.S. in three waves.
Enucleation (Eyeball Removal). Enucleation is the removal of an eye. It is an irreversible method of treating various disorders of the eye. Reasons for enucleation include: 1  Severe untreatable trauma, such as a perforated or ruptured eyeball. 2  Uncontrollable glaucoma.
Together with the abducens nerve, the sixth cranial nerve, the trochlear nerve helps the eye move in a lateral (toward the midline) direction. The trochlear nerve controls the superior oblique muscle, which is one of the six extraocular muscles that influence eye movement.n other words, using the superior oblique muscles will cause the eyes to become crossed.. If the trochlear nerve is harmed, a condition called trochlear nerve palsy (or fourth nerve palsy) may result.