* Punctal cauterization
* Vitamin A: 10K IU, taken on five or six days per week (most important supplement for dry eyes) (This takes three weeks to work. Do not confuse with beta carotene.)
* Taurine: 1g bid
* Lutein: 20 mg (naturally derived only, not synthetic)
* Vitamin D3: 5K IU, taken on six days per week
* Fish oil: 2g bid (triglyceride ester version) (provides 1.4g omega-3s in all)
* Generic cyclosporin A eye drops (burns at first for a few months, but then works)
Since you mentioned pressure, get your eye pressure checked annually by a professional, as should everyone. You can also confirm that your eye prescription is correct, although various optometrists are idiots and give a wrong prescription, so be careful. As for your blood pressure, you can use an upper-arm Omron BP monitor to measure it at home.
Note that preservative-containing eye drops can irritate the eye in the long term. Benzalkonium chloride is the worst such offender. Preservative-free lubricant drops exist.