I'd say your eye symptoms correspond to a conjunctivitis. I was diagnosed with an allergic conjunctivitis when I was about 12, and I also used to feel "sand" behind my eye balls, which were extremely dry. Later, when I was 25 I visited a dentist, and some time after I developed sinusitis and stronger allergy symptoms. Conventional medecine did not help, so at 35 I shifted to alternative medicine..
According to Andreas Moritz and other experts in this site, all our symptomps come from a dirty liver (dental amalgams, tobacco, Antibiotics , drugs, too much protein..). I encourage you to read his book "The amazing liver cleanse" or "The keys to health and rejuvenation" -where the procedure is also described. Alternatively you can follow Dr Clark's method explained in this site.
I have done 15 Liver Flushes so far and my eyes are much better now.