Are vent shrimps blinded by science?

Article Abstract:

It is suggested that the use of high-intensity floodlights has damaged the eyes of many of the decapod shrimps of the Mid-Atlantic Ridge, irretrievably. Rimicaris exoculata and Mirocaris fortunata shrimps were collected, and the thoracic eyes of some individuals were pink and smooth while others were matt chalky white with dark areas. The pink eyed specimens showed a normal extensive rhabdom layer, while the white-eyed specimens often exhibited complete loss of the rhabdom layer.

Physiological aspects, Shrimps, Shrimps (Animals)

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A jitter after-effect reveals motion-based stabilization of vision

Article Abstract:

The eyes face the challenge that they are constantly making small movements even when a fixed gaze is maintained. Position changes from large eye movements appear to be corrected by extraretinal signals and resulting motion response is switched off. A novel visual illusion is reported, that reveals a compensation mechanism based on visual motion signals. A model accounting for the illusion is proposed.

Observations, Vision research

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