Yasmine,
I posted a solution on the Dry Eye Zone forum once and it was removed, so I'm not convinced that the intent of that site is constructive. I had dry eyes which grew steadily worse for over 30 years, eventually having to wear dark goggles most of the day. My eyelids would make audible sounds when I blinked, and some mornings they were hard to open. My eyes were very red, with an especially thick red vein travelling to the upper-inner part of my iris. I researched this problem for many years and concluded that my immune system was compromised in some way. But for me this problem did not and does not seem to be linked to TMS.
I found 2 solutions. The first was Natural Dessicated Thyroid. Thyroid hormone issues are very common, and conventional doctors are terrible at diagnosing them. And when they do they generally insist on prescribing a synthetic hormone (which rarely works). Although my thyroid blood tests were still in the "normal" range, the more definitive test is treatment, so I finally found a doctor who would prescribe this (the most difficult part). The result was miraculous. Within 30 minutes, my goggles fogged up and I realized my eyes were filling with tears. Incidentally this treatment also solved dozens of other issues I didn't even know were related, and also greatly relieved my back pain. There is a website stopthethyroidmadness that can provide more info.
The second solution was a raw, whole-foods plant-based diet. I found this by following a guy named John Kohler on YouTube and basically mimicking his lifestyle. This was intended for other medical issues, but I eventually found that it is almost a cure-all (fixed everything but occasional debilitating back pain, which is I cure via TMS). Each day I would drink 64oz of freshly made veggie juice, a fruit smoothie, and a giant salad. I no longer needed thyroid hormone treatment, and haven't been sick or hungry for over 5 years. Not only have I eliminated red veins in my eyes, this is also removing a hazy cloud over the iris so they are noticeably more blue than when I started.
-Peter