New Sharking Vid Can Some One Help Me Find A Video On The Protective White Thing On Sharks Eyes?

Can some one help me find a video on the protective white thing on sharks eyes? - new sharking vid

I saw a video on YouTube not long ago.
These are some researchers who went on a ship for research in some sharks.
They gave the sharks with a long stick, and if the Sharks do not eat food from the glass of the white of the eyes to protect them. But Nextime, feeling no danger that food takes no white lens is, for the eyes.

Can this vid?
Or like a wine?

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