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.
One of the most common causes of this type of watery eye problem is called ectropion. This condition is a drooping and pulling away of the lower eyelid. It is usually seen in older people who gradually develop a weakness of the lower lid. Ectropion may cause the eyes to be dry, sore, red, and burning.