White bugg eggs on tomato plant

Hello! I know I'm brand-spankin'-new (just joined a few minutes ago), but I've run into a problem with my cherry tomato plant.

While watering it today, I spotted some tiny, white eggs clustered on the top of a leaf. Here are some pictures of them up close. 

I really can't figure out what sort of insect or arachnid they belong to. The descriptions I've found on the internet of various insect/arachnid eggs haven't matched up very well. I don't know whether to get rid of these as soon as possible for fear of them being pest eggs, or to keep them in hopes of them being beneficial bug eggs.

Any advice would be greatly appreciated-- I'm trying to take care of this tomato plant as much as I can since it came up on its own out of last year's soil and I feel a strange sense of obligation to care for it, lol.