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.
If your eyes feel tired, sore or gritty or sandy, you may have 'dry eyes', or 'blepharitis' , or both. Dry eyes is a common problem as people get older, and in diabetes. The eyes may feel scratchy or gritty, as though there is something in them (foreign body sensation).