The health of your eyes reflects the health of your body.
Dry eyes reflect deficiency of nutrient or allergy.
Smog, chemical irritants, contact lenses, low humidity, cigarette smoke, aspartame, dust, wind, sun, air conditioning and heaters are common causes of dry eyes. Preservatives used in glaucoma and other eye drops like benzalkonium chloride and thimerosal has been shown to worsen dry eyes and to actually be toxic to the cells of the cornea. Poor vision from cataracts, glaucoma, macular degeneration and diabetic retinopathy are often caused or precipitated by a combination of exposure to toxins and poor nutrition. Glucoma can be caused by long term use of steroid, over consumption of aspartame and monosodium glutamate which are known optic nerve toxins. Macular degeneration could be caused by over exposure to the sun and poor nutrition.