That resolution is not really correct for Virtual i/o glasses from the 90's. I still have the setup in a box in my closet. The maximum input resolution is correctly 640x480. What you actually get displayed though is half of that per eye. It is most noticeable with text. The resolution is not good at all.
When a Banker jumps out of a window, jump after him--that's where the money is. -- Robespierre