The eyes have it

The eyes have it, especially if you are a barreleye fish (Macropinna microstoma) a species complete with a transparent head and tubular green eyes able to rotate 90 degrees from vertical to horizontal used
in its endless search for prey. 

The barreleye (Macropinna microstoma) has extremely light-sensitive eyes that can rotate within a transparent, fluid-filled shield on its head. The fish’s tubular eyes are capped by bright green lenses. The eyes point upward (as shown here) when the fish is looking for food overhead. They point forward when the fish is feeding. The two spots above the fish’s mouth are are olfactory organs called nares, which are analogous to human nostrils. Image: © 2004 MBARI 

Thousands of feet beneath the surface of Monterey Bay off California, scientists recently captured footage of a fish with a bulbous, translucent head and green orb-like eyes that peer out through its forehead.

This bizarre creature, known as a barreleye fish (Macropinna microstoma), is very rarely seen. Researchers with the Monterey Bay Aquarium Research Institute (MBARI) have only spotted the species nine times, despite having sent their remotely operated vehicles (ROV) on more than 5,600 dives in the fish's habitat, MBARI tweeted on Dec. 9. 

But last week, a team of scientists deployed MBARI's ROV Ventana and caught sight of a barreleye fish suspended in the water. 

This face-on view of a barreleye shows it’s transparent shield lit up by the lights of MBARI’s remotely operated vehicle Tiburon. As in the other photos, the two spots above the fish’s mouth are are olfactory organs called nares, which are analogous to human nostrils. Image: © 2006 MBARIed MBARI's ROV Ventana and caught sight of a barreleye fish suspended in the water. 

As stated before, the eyes have it, indeed. :)