Eye nutrition follows the rule of good general nutrition:
Lots of vegatables including dark leafy greens, whole grains, and a reasonable amount of fish especially those which have the omega fatty acids. The book named "Superfoods" has a good list and I think these are commonly listed online.
If you remember to blink more and look away from your computer occasionally, you will improve regarding your blurriness. Keep the ambient air more humid and try some artificial tears.
Foods like, blueberries, carrots, yams, spinach, apricots, cantaloupe, mangos, nuts, seeds, as well as those listed by Dr. Joan M Pernoud. Hope this helps.