1 Preheat oven to 350 degrees F (175 degrees C). 2  Grease and flour one 9x13 inch baking pan. 3  Sift flour and baking powder together and set aside. 4  Cream butter or margarine and the 1 cup sugar together until fluffy. 5  Add eggs and the 1/2 teaspoon vanilla extract; beat well.irections. 1  Preheat oven to 350 degrees F (175 degrees C). 2  Grease and flour one 9x13 inch baking pan. 3  Sift flour and baking powder together and set aside. 4  Cream butter or margarine and the 1 cup sugar together until fluffy.
Quick Answer. The sense of sight is important as it helps compensate for a loss of other senses, enables the differences between good and bad food to be distinguished, helps create impressions and find partners and helps ensure safety by perceiving signs of danger.
With sufficient damage, sight is lost. Damage to the optic nerve is irreversible because the cable of nerve fibers doesnât have the capacity to regenerate, or heal itself, when damage occurs. This is why glaucoma is an incurable disease at this point, and why early detection is so important.