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"This category [science fiction] excludes rocket ships that make U-turns, serpent men of Neptune that lust after human maidens, and stories by authors who flunked their Boy Scout merit badge tests in descriptive astronomy."
- Robert Heinlein

Retinal Vid-Screen  
  A tiny display surgically implanted directly in the retina of the eye.  

Morris is pursued without mercy by robotic salesmen, one of whom wants to make sure he doesn't miss anything newsworthy.

"All the news while it's news," a metallic voice dinned at him. "Have a retinal vid-screen installed in your least-used eye. Keep in touch with the world; don't wait for out-of-date hourly summaries."

"Get out of the way," Morris muttered. The robot stepped aside for him and he crossed the street with a pack of hunched-over men and women.

From Sales Pitch, by Philip K. Dick.
Published by Future Science Fiction Magazine in 1954
Additional resources -

Compare this idea with the notion of retinal projection, from The Space Merchants by Frederik Pohl and Cyril Kornbluth (1952).

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Additional resources:
  More Ideas and Technology from Sales Pitch
  More Ideas and Technology by Philip K. Dick
  Tech news articles related to Sales Pitch
  Tech news articles related to works by Philip K. Dick

Retinal Vid-Screen-related news articles:
  - Nano Retina Retinal Implant

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