Is it an Aura?

Q: About a year ago I started seeing blue and yellow outlines around people and things.

It's just been those two colours, and I wear glasses, so I'm not sure if it's an eye condition or not. It's just sort of there, it doesn't make me feel dizzy or uncomfortable.

Have you heard of anything like this before? It's just the two colours, and is only sometimes. It's like the object or person is split in half, one side yellow and the other blue. They're easier to see when the sun is setting and the object is silhouetted against the sky, or just facing the sky. Have you heard of anything like this before? Do you know what it is?

Eva's Response: No I haven't heard of this, to be honest. It's very likely that you are either seeing auras, or you might be getting after-images, which is caused when you've stared at an object too long.

You mention you wear glasses, so it might be an idea to talk to your optometrist about it.