If I block someone on Fb, will they still be able to see the photos I've sent them in our convo history?

[Althɛɑ]

So someone added me on Facebook, who I also know in person, but I'm thinking of blocking them. Personal reasons. I just wanted to know if they'll still be able to see the photos I've sent them in our conversation history, thus if it's even worth blocking them.

[Sanya Kapoor]

if u hve sent d link of ur pic then no but but if u hv sent d pic as a message then mayb yes

[m.varun]

once u have sent photo in conversation window ..
they other person can get access to it anytime he/she wishes to ..

[Aubree]

They won't be able to view the messages anymore