Here's the situation: the party has a non-magic scroll with some symbols. They recently killed someone who might have information about the parchment and its meaning, so they want to start the movie Talk to Death to show the parchment to the corpse and ask them what the symbols mean.
My question is: can the corpse see the parchment? The corpse knows what the symbols mean, but without being able to see them, the corpse has no context to answer. The wording of the spell does not say which senses are affected by the spell. The corpse can obviously hear the questions. Does this imply that his other senses are intact?