This study went into some of the changes in depth perception experienced by people going through hormonal therapy for gender reassignment operations: http://www.ncbi.nlm.nih.gov/pubmed/10341369

This paper talks about some observations and some of the issues that still need to be covered: http://www.danah.org/papers/transtech.pdf

And a further paper from Dr. Boyd going into more detail on virtual reality more specifically: http://www.danah.org/papers/sexvision.pdf