After I converted and became Catholic, a protestant told me that only people who had a "blind faith" would accept the Catholic teachings. This was, according to him, because Catholicism was so illogical that anyone who was paying attention would reject it. As we spoke further about the faith, it became apparent that he was beginning to see that protestantism is quite illogical, and that Catholicism is not.
The claim of "blind faith" is often thrown at Catholics by unthinking protestants. Some will go so far as to say that we are "blind sheep" who do not think for themselves. Where does this accusation come from? On the majority it stems from the Catholic practice of what is better called "humble faith" (which, obviously, is opposed to "prideful faith").
A humble faith is one that trusts God, Who knows all things, to reveal to us what we need to know, and does not fret about the rest. A prideful faith, on the other hand, presumes that it knows everything it needs to, and can figure out anything else by studying it. If someone has a humble faith, he can quickly recognize prideful faith as self-confident. For someone, however, who has a prideful faith, every example of humble faith looks like blind faith. It is almost impossible to tell the difference when you are looking with prideful eyes.
Jesus warns us about this kind of faith in Matthew 6:22-23. He tells us there that our eyes can see only bad if our hearts are bad. Pride always makes eyes blind; and humility enables ones' eyes to see what is good and right. So look at your faith, and see if it is a genuine blind faith that accepts everything that you hear without discernment. Or, it might be a prideful faith that looks down on others. Seek to have that godly humble faith that accepts what it is given, and trusts God for the rest.