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
LETTUCE. The common lettuce of the garden (Lactuca sativa crispa) is a tall, leafy, annual herb with a milky juice. At first the stem is very short and the foliage densely clustered near the ground, but later in the season a flower stalk, 2 to 4 feet high, appears.arly Growth. --Root development in lettuce takes place rapidly. When conditions for growth are very favorable, lateral branches begin to appear on the first 1 to 1.5 inches of taproot only 6 days after the seed is planted and when the cotyledons alone have unfolded.