It it probable that Raphael, like his .sophisticated peers and predecessors, was sufficiently saturated ^v^h information on these matters as to engage vision issues on a relatively complex level, supplementing what he did not know of specifics by discussing the problem with theological advisers. Raphael may have received the foundations of his education in the theological issues of vision early on from Fra Bartolommeo, the Dominican painter with whom he exchanged artistic knowledge and probably some particulars of Dominican theology while living in Florence.''