Why do we see a spectrum after Swimming?

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    Spectrum Swimming
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After swimming, individuals may notice a spectrum around light sources due to the refraction of light through excess tear film on the eye's surface. The water, potentially containing chlorine and other chemicals, alters the eye's surface tension, causing the tears to form a non-spherical shape that acts like a prism. This phenomenon is similar to what occurs when crying, as the tear drop shape also refracts light. Some participants suggest that chemicals from pool water may temporarily fog the cornea, contributing to the visual effect. Experimentation is encouraged to further understand the conditions under which the spectrum appears.
anuragkanase
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Hey guys,
I recently noticed that, after a swim, when you look at the light, you see a spectrum around it. The light was white light. And you see it with naked eyes.
Can you guys explain this phenomenon?
The water did contain Chlorine and maybe other necessary chemicals required in swimming pool.
Thank you.
 
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I am not a biologist or a medic but I do know that after I swam my eyes watered more.

The excess water on the surface of my eye is affected by surface tension and gravity so it must be pulled into a non spherical curve which hence is a prism and will refract light of different wavelengths at different angle so producing a spectrum.

Do what all good physicists do and I am going to do next time I swim - do an experiment.

If I hold my head as close as possible to vertically downwards and look at a light source directly beneath I would expect the spectrum to disappear


Regards

Sam
 
You're right. I need to experiment it different ways. But it must happen when we cry. Oh, I am not certain but your answer is somewhat correctly related to sphere formed by tear drop. And I think yes we see a spectrum when we cry.
Holy, I can't even cry right now.
Thanks for the answer.
 
My guess that the cornea is absorbing some of the chlorine or other chemicals from the water, (chemicals tend to transfer from higher concentrated fluids to lower concentrated fluids), resulting in a slight fogging of the cornea. Once you're out of the pool, eventually the chlorine or other chemicals will get dispersed by the fluids produced at your eyes.
 

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