Organ in animals responsible for collecting visual information from the environment.

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7
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4answers
6k views

Eyes open under water

Yesterday I looked underwater with my eyes open (and no goggles) and I realized I can't see anything clearly. Everything looks very, very blurry. My guess is that the eye needs direct contact with air ...
4
votes
2answers
289 views

Sensitivity of eye

In which color human eye is most sensitive?
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votes
2answers
1k views

Why can you see a light in the location that the light source just left?

This is my first question on this site so forgive me for the awkward wording of the question. Basically, my question is why does light from, say, a sparkler, seem to remain where it just came from to ...