The National Motor Freight ClassificationÂ®. The National Motor Freight ClassificationÂ® (NMFCÂ®) is a standard that provides a comparison of commodities moving in interstate, intrastate and foreign commerce. It is similar in concept to the groupings or grading systems that serve many other industries.
Dry eyes Symptoms of dry eyes include a gritty sensation, pain, light sensitivity, eye redness, burning, and stinging. Sjogren's syndrome Sjogren's syndrome is an autoimmune disorder that most often causes dry eyes and dry mouth.
Symptoms. 1  Sore and swollen eyelids. 2  Itchy eyes and eyelids with a gritty feeling. 3  Excessive tearing and eye mucus. 4  Sticky mucus and eye crusts. 5  Redness of the eyes. 6  Light sensitivity.