Hmm.. I would never have thought that OR works with one eye sight. I thought 3D effect is a necessity for right feel from OR.
Do you happen to own or use a Rift at all? I only ask as, if you haven't/don't then I think this is down to part of the problem regarding telling people what the Rift is like. Many seem to have a hard time understanding how the Rift works and what you see inside it. As just like mentioned above from JMC002, for him, the effect and view he has inside the Rift will be no different than IRL (excluding obvious things like resolution and FOV etc).
Depth is made up of at least 2 types of senses, 1 being the 3d effect of having 2 eyes perspective of an object, and the parallax effect we see when moving around and looking at things close and far.
You can try this yourself, just close one eye and look around at things while moving your head around, you lose some depth, but due to the parallax effect, you can still tell the distance of objects from you, although not as accurately, since those of us that have 2 fully working eyes, are used to making depth judgements based off these inputs. Although if you lost vision in 1 eye, your brain will adapt for this.