I don’t know anything about baby bunnies opening their eyes, but I agree that they are probably best left alone to do that on their own.
If your male and female were still together when you discovered the babies, it’s very likely that the female is pregnant again. They can get pregnant immediately after giving birth. I assume that they are being kept separately now, and hopefully they have not been together since she gave birth. Rabbits can also manage to mate through cage bars, so their cages cannot be touching on another. And, males can still be fertile for a few weeks after their neuters, so it’s not safe for them to be together for a while after his neuter. For them to be together at all, you will need to have the female spayed, then after a few weeks, you can begin the bonding process. The male would have been neutered and recovered by then too.
Here are 2 good articles on bonding:
https://rabbit.org/faq-bonding-multiple-rabbits/
https://binkybunny.com/BUNNYINFO/tabid/53/CategoryID/9/PID/940/Default.aspx
Lastly, the 3 babies will need to be separated when they are around 12 weeks of age, since rabbits can start reproducing that young and since rabbits entering puberty are likely to fight and may injure each other. It doesn’t matter if they are siblings, or what gender they are, they can still get aggressive and fight.