ArticleFrontiers in cellular neuroscience2022
Osmotic gradients and transretinal water flow-a quantitative elemental microanalytical study of frozen hydrated chick eyes.
Article in Frontiers in cellular neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 2 citations in OpenAlex.
- Modulation of Systemic Osmolarity Alters Retinal Thickness and Schisis Cavities Without Blood Retinal Barrier Disruption in Rs1 Knockout Mice.Investigative ophthalmology & visual science · 2026Article
- Diuretic inhibition of experimental myopia implicates retinal ion-driven efflux in the regulation of ocular growth.Frontiers in medicine · 2026Article
- Article
- Osmosis as nature's method for establishing optical alignment.Current biology : CB · 2024Article
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2 authors at 1 institution in 1 country.
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Abstract
Optical clarity and efficient phototransduction are necessary for optimal vision, however, how the associated processes of osmoregulation and continuous fluid drainage across the whole eye are achieved remains relatively unexplored. Hence, we have employed elemental microanalysis of planed surfaces of light-adapted bulk frozen-hydrated chick eyes to determine the unique intracellular elemental localization, compositions, and hydration states that contribute to maintaining osmotic gradients and water flow from the vitreous, across the retina, retinal pigment epithelium (RPE), to choroid and sclera. As expected, the greatest difference in resultant osmotic concentration gradients, [calculated using the combined concentrations of sodium (Na) and potassium (K)] and tissue hydration [oxygen-defined water concentration], occurs in the outer retina and, in particular, in the RPE where the apical and basal membranes are characterized by numerous bioenergetically active, osmoregulating ion transport mechanisms, aquaporins, and chloride (Cl) channels. Our results also demonstrate that the high intracellular Na
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