In order to avoid eye strain and headaches, it is important to pay attention to the placement of text elements in virtual 3D space. Font size, depth, contrast, spacing, density, lighting and many other things can affect the legibility of text and UI elements.

Traditional font sizes that are used in 2D screen UI elements (generally 12 to 32pt) are pretty small in AR and VR environments when placed within the comfortable viewing distance of 2 to 3 meters. As mentioned before, we can take examples from print posters and signage as guidance for font sizes in virtual environments.

In some XR cases, such as data visualization or multiplayer collaboration, the user will need to have an easy view of any labels or contextual information associated with that data. If the labels are facing different directions, the user will have to walk around or manually adjust their view to access the information. This can become frustrating and poses a risk of the user missing important data and insights.

When designing or assessing solutions in XR, you need to ensure that people who wear corrective lenses are able to have a quality experience. This includes people who wear reading glasses, bifocals or progressive lenses.

There is one very important thing to consider if you’re thinking about creating VR content for children under the age of 12. And that is the Pupillary Distance – or PD – of the headset. This is how far apart the pupils of our eyes are from each other.

Let’s talk human vision and the Apple Vision Pro. Can the majority of humans use it - even if they could afford it? Here are some things to consider before choosing the Apple Vision Pro as your company or personal headset.