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
Noun. 1. head lettuce-distinguished by leaves arranged in a dense rosette that develop into a compact ball. Lactuca sativa capitata. butterhead lettuce-lettuce with relatively soft leaves in a loose head; easily broken or bruised.crisphead lettuce, iceberg lettuce, iceberg-lettuce with crisp tightly packed light-green leaves in a firm head; iceberg is still the most popular lettuce.genus Lactuca, Lactuca-an herb with milky juice: lettuce; prickly lettuce. lettuce-any of various plants of the genus Lactuca.oun. 1. head lettuce-distinguished by leaves arranged in a dense rosette that develop into a compact ball. Lactuca sativa capitata. butterhead lettuce-lettuce with relatively soft leaves in a loose head; easily broken or bruised.