White spots or light spots in field of view?

If you notice light leakage

To check whether you're experiencing light leakage or not, compare your experience using your Vision Pro in both a brightly lit and a dimly lit room. Some light leakage around the nose is normal. For an ideal fit, you want your Light Seal to make contact with the sides of your face to minimize light leakage.

• If your experience improves in the dimly lit room, the issue is light leakage. To address this, you can adjust the fit of your Vision Pro or try a different Light Seal cushion.
• If your experience doesn't improve in the dimly lit room, you may be experiencing light originating from the display causing some reflections within the optical system.

If your Light Seal Cushion or Light Seal doesn't fit correctly

If you adjusted the fit of Apple Vision Pro and your device still isn't fitting properly, you might need to use a different Light Seal Cushion or Light Seal. 

Signs that you might need a different Light Seal Cushion or Light Seal

If your Light Seal Cushion or Light Seal doesn't fit correctly, you might experience:

• Uneven facial discomfort, including pressure on the forehead, cheek, or nose.
• A notification alerting you that your eyes are too far or too close to the displays.
• Eyelashes brushing against the displays.
• Light leakage coming from the sides of your Light Seal.

If your Apple Vision Pro doesn't fit properly - Apple Support

I believe this is expected behavior based on the type of lenses that Apple is using in the Vision Pro. A side effect is a bit of a glare or halo effect, especially when watching bright content in a dim environment.