Are there a limited number of Oculi?

The game lets you take Oculi you already have and craft new/better ones. Yesterday after getting my first red/blue/green I immediately crafted a while one. This of course diminishes the total number of Oculi I have available to equip. I then worried that perhaps I had wasted some precious resource.

So the heart of the question:

Is there any harm in crafting Oculi willy nilly or should I covet them and wait to craft?

Solution 1:

Oculi drop randomly after battles, and can be found in chests. Enemies are respawned after you quit and re-enter the game, so you can farm them that way.

Solution 2:

I believe you can get them as drops from random encounters, so I think you're good to craft away. I'm still pretty early into the game so downvote away if I'm wrong on that :)