Most healthcare-related VR is focused on anatomy, though I expect that this market will explode within the next two years as the demand for a variety of other learning and training software increases. Some programs that are currently available for download include:
 

The Body VR 
"The Body VR: Journey Inside a Cell is an educational virtual reality experience that takes the user inside the human body. Travel through the bloodstream and discover how blood cells work to spread oxygen throughout the body. Enter one of the billions of living cells inside our body and learn how the organelles work together to fight deadly viruses."
 

3D Organon VR Anatomy 
"3D Organon VR Anatomy is the world’s first fully-featured virtual reality anatomy atlas. Learn human anatomy with over 4000 realistic anatomical models/structures sided with quality text descriptions per body structure."


The Enlightened League of Bone Builders and the Osseous Enigma 
"Reckon yourself to be a most esteemed anatomist, do you? Well then immerse yourself in an intriguing Victorian parlour of curios to see how quickly you can piece together Yorick's complete skeleton."
 

VIVED Anatomy

"VIVED Anatomy is designed to improve retention and increase understanding of spatial relationships of important anatomical parts. Our research-based approach to learning anatomy encourages students, rather than teachers to uncover the inner workings of the human body

We help students to explore the human body in new and innovative ways. We’ve spent more than 10 years researching ways to empower students to learn anatomy and just as long to create accurate, high quality 3D anatomy illustrations that can be virtually dissected layer-by-layer and part-by-part by using a mouse, stylus or touch device.

Since 2007, we have been developing solutions for leading anatomy education publishers, like Elsevier and Cengage Gale that bring learning to life."

The Physiology of the Eye 
The Physiology of the Eye" is an educational VR experience that teaches you about the anatomical structures and physiology of the eye. As you work your way through each of the chapters you will be quizzed and given a GPA at the end.


Vision Therapy 
Vision Therapy is a convenient VR tool to keep eyes strong and healthy. It contains simple visual guidance to sets of 5 exercises randomly put together for a single session. Each set includes classical techniques which ensure that your eye muscles work properly: tense when necessary and relaxed when it’s time.