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Monocular eye-cueing shifts eye balance in amblyopia.
J Vis
January 2025
McGill Vision Research, Department of Ophthalmology & Visual Sciences, McGill University, Montreal, QC, Canada.
Here, we investigate the shift in eye balance in response to monocular cueing in adults with amblyopia. In normally sighted adults, biasing attention toward one eye, by presenting a monocular visual stimulus to it, can shift eye balance toward the stimulated eye, as measured by binocular rivalry. We investigated whether we can modulate eye balance by directing monocular stimulation/attention in adults with clinical binocular deficits associated with amblyopia and larger eye imbalances.
View Article and Find Full Text PDFMoculus: an immersive virtual reality system for mice incorporating stereo vision.
Nat Methods
December 2024
Laboratory of 3D Functional Network and Dendritic Imaging, Institute of Experimental Medicine, Budapest, Hungary.
Due to technical roadblocks, it is unclear how visual circuits represent multiple features or how behaviorally relevant representations are selected for long-term memory. Here we developed Moculus, a head-mounted virtual reality platform for mice that covers the entire visual field, and allows binocular depth perception and full visual immersion. This controllable environment, with three-dimensional (3D) corridors and 3D objects, in combination with 3D acousto-optical imaging, affords rapid visual learning and the uncovering of circuit substrates in one measurement session.
View Article and Find Full Text PDFWe report a case of acute ischemic stroke presenting as wall-eyed bilateral internuclear ophthalmoplegia (WEBINO) syndrome. A 71-year-old woman experienced transient diplopia, followed by the sudden onset of binocular misalignment, gait instability, and nausea. Neurological examination demonstrated exotropia and bilateral adduction impairment, consistent with WEBINO syndrome.
View Article and Find Full Text PDFAdverse Ocular Impact and Emerging Therapeutic Potential of Cannabis and Cannabinoids: A Narrative Review.
Clin Ophthalmol
November 2024
Department of Ophthalmology, Stanford University School of Medicine, Stanford, CA, USA.
Cannabis is the most used drug worldwide with an estimated 219 million users. This narrative review aims to explore the adverse effects and therapeutic applications of cannabis and cannabinoids on the eye, given its growing clinical and non-clinical uses. The current literature reports several adverse ocular effects of cannabis and cannabinoids, including eyelid tremor, ptosis, reduced corneal endothelial cell density, dry eyes, red eyes, and neuro-retinal dysfunction.
View Article and Find Full Text PDFTransient eye closure and ocular preference in patients with intermittent exotropia.
J AAPOS
December 2024
Department of Ophthalmology, New Zealand National Eye Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand.
Purpose: To assess the relationship of sensory and motor ocular dominance to transient eye closure (TEC) under bright light conditions in patients with intermittent exotropia.
Methods: Forty patients (age range, 7-40 years) with intermittent exotropia were included in this prospective study. Motor and sensory ocular dominance were evaluated using the hole-in-the-card and Worth 4-Dot tests.
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