Hey sorry I am not sure why I wasnt notified of this question!
Dry eyes could be poor circulation, lack of vitamin E, omegas, dehydration, etc.
gluey tears is toxicity, usually relating to liver and kidneys. I am not sure about the relation to contacts and how that works sorry.
id recommend try some healthy oils (flax, hemp, fish) but make sure you have glutathione status. Also talk with your doc about vitamin e. and there is a remedy called ocugen from genestra that supports eye health.