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Tag: opthamology

The Skin Keeps Time Independent Of The Brain

A type of opsin known as neuropsin is expressed in the hair follicles of mice and synchronize the skin’s circadian clock to the light-dark cycle, independent of the eyes or brain, University of Washington researchers report. “This is the first functional demonstration of opsin photoreceptors outside the eye directly controlling circadian rhythms in a mammal,” […]

Electrical Synapses Drive Retinal Feature Selectivity

Two types of cells have been found in the retina that determine horizontal or vertical orientation, Northwestern Medicine scientists report. They have also demonstrated for the first time how they convey information. The laboratory of Gregory Schwartz, Ph.D., assistant professor of Ophthalmology and Physiology, investigates the retina, a layer of tissue at the back of […]

Visual Signals Recalibrate Eye Gaze Position Across Eye Blinks

Every few seconds, our eyelids automatically shutter and our eyeballs roll back in their sockets. Why don’t we perceive intermittent darkness and light? New research shows that when we blink, our brain re-positions our eyeballs so we can stay focused on what we’re viewing. When our eyeballs roll back in their sockets during a blink, […]