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.
Eye Pain Facts. Eye pain is often described as burning, sharp, shooting, dull, gritty, a feeling of something in my eye, aching, pressure, throbbing, or stabbing. Sometimes pain originating from the eye is confused with other symptoms, such as a headache, sinus pain, toothache, or a migraine.