From the sources I looked at below.. I would say YES open your baby bunny’s eye.. either by massage and then physical opening.. or warm water.. and opening..
Quoted from (http://www.barbibrownsbunnies.com/having_baby_bunnies_questions.htm)
Domestic rabbits are born deaf, blind and furless. Only jack rabbits are born fully furred with eyes wide open ready to run. The babies should begin to have noticeable fur by three days of age.
The eyes will open at ten to twelve days. If you notice most have their eyes open by twelve days, check the ones with their eyes closed very carefully to be sure they aren’t matted shut from a bacterial infection. Wipe the eyes with a warm wash cloth to see if they will open. If they produce pus or other matter, treat them with an ophthalmic antibiotic or Nitrofurazone Powder twice a day until clear. Be sure to clean them thoroughly before each application of ointment, drops or powder.
Quoted from (http://home.pacbell.net/bettychu/nestbox.html)
At 10-12 days old, bunnies’ eyes open. Once a while, a bunny has problem in opening one or both eyes by itself. By the 13th day, if the eyes are still not unopen, I’ll wet the bunnies’ unopen eyes, lightly massage a little then use my fingers to open them. If left without help, the unopen eyes may be become blind.