I will usually ask how symptomatic patients are from the tearing. This will dictate what course of treatment is considered. The tear film is a very complex surface consisting of a mucin (mucus) layer, an oil layer and an aqueous (water) layer. All three of these layers must be healthy for the eye to function properly. Evaluation of the tear film must always be considered in looking for a cause of tearing.
â¢ The building weighs 365,000 tons and its volume is 37 million cubic feet. â¢ The exterior of the Empire State Building is composed of 200,000 cubic feet of Indiana limestone. and granite, 10 million bricks and 730 tons of aluminum and stainless steel. â¢ The Empire State Building is currently undergoing one of the worldâs largest elevator.
This much concrete would build a monument 100 feet square and 2-1/2 miles high; would rise higher than the 1,250-foot-tall Empire State Building if placed on an ordinary city block; or would pave a standard highway 16 feet wide, from San Francisco to New York City.