Abraham Lincoln, the 16th President of the United States, was assassinated by John Wilkes Booth on Good Friday, April 14, 1865, while attending the play Our American Cousin at Ford's Theatre in Washington, D.C., as the American Civil War was drawing to a close.
Eye drops have preservatives in them to ensure the sealed product remains sterile until the expiry date. After opening however, the preservative can only ensure the drops are safe for the eye for a period of 28 days. After this, using the drops can cause serious damage to the eye as bacteria may have been introduced. The ingredients themselves will also not be as effective and could be dangerous. Always record the date eye drops are opened and do not use them after 28 days. Some eye drops now have longer expiry dates after opening-always check the packet.
How to Insert Eye Drops. 1  Before you use eye drops, wash your hands with soap and warm water. 2  To put them in your own eyes, lie down or use a mirror. 3  Look up to the ceiling with both eyes.  Tilt your head back and pull your lower lid down with one 1  hand. Place one drop or a little ointment inside your lower  lid.