# seeing yellow **URL:** \ **Category:** Factual Questions\ **Created:** [October 24, 2019, 4:14pm UTC](https://boards.straightdope.com/t/seeing-yellow/842240 "2019-10-24T16:14:18Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![SuntanLotion](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/suntanlotion/32/16165_2.png) [@SuntanLotion](https://boards.straightdope.com/u/SuntanLotion)\ **Post date:** [October 24, 2019, 4:14pm UTC](https://boards.straightdope.com/t/seeing-yellow/842240/1 "2019-10-24T16:14:18Z")
Most times, when I am lying down, looking at the white ceiling, I can see yellow if I relax my eyes, in the shape of octogons. Has anyone ever had that, is it something bad? ---
**Author:** ![Beckdawrek](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/beckdawrek/32/3647_2.png) [@Beckdawrek](https://boards.straightdope.com/u/Beckdawrek)\ **Post date:** [October 24, 2019, 5:56pm UTC](https://boards.straightdope.com/t/seeing-yellow/842240/2 "2019-10-24T17:56:45Z")
I see grey bubbles. I don’t think it’s anything to worry about. Sparkly things might be real bad, I hear. ---
**Author:** ![BorgHunter](https://avatars.discourse-cdn.com/v4/letter/b/7c8e57/32.png) [@BorgHunter](https://boards.straightdope.com/u/BorgHunter)\ **Post date:** [October 24, 2019, 6:08pm UTC](https://boards.straightdope.com/t/seeing-yellow/842240/3 "2019-10-24T18:08:05Z")
Seeing some visual noise when looking at a featureless surface is known as the [Ganzfeld effect](https://en.wikipedia.org/wiki/Ganzfeld_effect) and it’s normal. Personally, I see flashes which look like a very faint field of TV static (from when TVs had static instead of blank blue screens) overlaid over my vision, and have since I was a small child. If this effect is so strong as to actually impair your vision, you should talk to a doctor about it. But otherwise, it’s just part of the myriad imperfections of our bodies.