Glaucoma is a group of eye diseases causing optic nerve damage. The optic nerve carries images from the retina, which is the specialized light sensing tissue, to the brain so we can see.In glaucoma, eye pressure plays a role in damaging the delicate nerve fibers of the optic nerve.When a significant number of nerve fibers are damaged, blind spots develop in the field of vision.Once nerve damage and visual loss occur, it is permanent.n glaucoma, eye pressure plays a role in damaging the delicate nerve fibers of the optic nerve. When a significant number of nerve fibers are damaged, blind spots develop in the field of vision. Once nerve damage and visual loss occur, it is permanent.
'lettuce' also found in translations in French-English dictionary. pied de laitue. pied de laitue. exp. lettuce plant. coeur de laitue. coeur de laitue. nm.earch also in: Web News Encyclopedia Images Context. lettuce n (=salad leaves) salade f (=plant) laitue f cos lettuce n laitue f romaine f, romaine curly lettuce n laitue f frisee frisÃ©e iceberg lettuce n laitue f. iceberg
Lactuca sativa is a member of the Lactuca (lettuce) genus and the Asteraceae (sunflower or aster) family. The species was first described in 1753 by Carl Linnaeus in the second volume of his Species Plantarum.Synonyms for L. sativa include Lactuca scariola var.ettuce was first cultivated in ancient Egypt for the production of oil from its seeds. This plant was probably selectively bred by the Egyptians into a plant grown for its edible leaves, with evidence of its cultivation appearing as early as 2680 BC.