(1834â1908), Dutch ophthalmologist. Snellen was director of an eye clinic at Utrecht. In 1862 he introduced a test for measuring the acuteness of vision which consisted of printed letters or words in type of various sizes.
The poppy of wartime remembrance is Papaver rhoeas, the red-flowered corn poppy. This poppy is a common weed in Europe and is found in many locations, including Flanders, which is the setting of the famous poem In Flanders Fields by the Canadian surgeon and soldier John McCrae.
California poppy is a plant. It is the state flower of California. People use the parts that grow above the ground for medicine.California poppy is used for trouble sleeping (insomnia), aches, nervous agitation, bed-wetting in children, and diseases of the bladder and liver.It is also used to promote relaxation.t is the state flower of California. People use the parts that grow above the ground for medicine. California poppy is used for trouble sleeping (insomnia), aches, nervous agitation, bed-wetting in children, and diseases of the bladder and liver.