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…Continue readingThe Skin Keeps Time Independent Of The Brain

Cannabidiol May Worsen Glaucoma, Raise Eye Pressure

A study from researchers at Indiana University has found that a major chemical component in marijuana appears to worsen the primary underpinning of glaucoma: a rise in pressure inside the eye. Treatment of glaucoma is among the most commonly proposed uses of medical marijuana. The chemical that causes this rise…Continue readingCannabidiol May Worsen Glaucoma, Raise Eye Pressure

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…Continue readingElectrical Synapses Drive Retinal Feature Selectivity

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…Continue readingVisual Signals Recalibrate Eye Gaze Position Across Eye Blinks

How Neurosurgeons Can Now Look At Your Brain Through Your Eyes

For many years scientists have been trying to find a way to measure the pressure in a patient’s brain without having to drill a hole in the person’s skull. Although this remains the most reliable way to measure pressure in the brain, it is invasive, expensive and comes with the…Continue readingHow Neurosurgeons Can Now Look At Your Brain Through Your Eyes

Eye Implant monitors Glaucoma Treatment with Phone

One of the only treatments for glaucoma currently is lowering internal eye pressure. But a miniature eye implant developed at Stanford could combine with a smartphone to advance the way doctors measure and lower a patient’s eye pressure. Weekly visits to eye specialists for monitoring and control of increasing pressure…Continue readingEye Implant monitors Glaucoma Treatment with Phone