They can see if the astral body does not have a mimic-physical-body attitude. Unfortunately in most cases the astral body does just that.
If you astral project when your material body is say 65 years of age, usually the astral body will look like the physical one.The astral body adapts to and mimics the physical one.
One important detail you left out was to state whether the person was blind from birth. If the person was not blind from birth then it is more likely that person will see through the astral eyes. But if the person was blind from birth, their use of the astral eyes might not be possible since the astral body itself might be using a blind profile for one reason or the other, and thus because of that the physical body mimicked that when the embryo was being created.