Vision of the Future

Visions of the Future is a quest in the Fallout 4 add-on Vault-Tec Workshop.

Detailed walkthrough
Valery Barstow next complains that the Hippocratic Oath is backwards and that doctors should focus on the greater good of the Vault, rather than patients' welfare. She requests you to build a Phoropter, which must be powered and programmed as per the previous objects.

The three parameters involved are Subliminal Messaging, Vault Monitoring, and Improved Eye Care. Most companions will hate the negative parameters and like the positive one.

If you chose mostly negative experiments for the three projects, the 'patient' will become angry and leave the vault. (trying three positives once the negative run is through to the end of the questline)