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One orange is 86% water, making it a hydrating fruit. Plus, potassium is one of the electrolytes we lose when we sweat, so eating an orange can help replace fluids after a tough workout.
Long-term contact lens use can lead to alterations in corneal thickness, stromal thickness, curvature, corneal sensitivity, cell density, and epithelial oxygen uptake. . Other structural changes may include the formation of epithelial vacuoles and microcysts (containing cellular debris), corneal neovascularization, as well as the emergence of polymegethism in the corneal endoth
The human eye can function from very dark to very bright levels of light; its sensing capabilities reach across nine orders of magnitude. This means that the brightest and the darkest light signal that the eye can sense are a factor of roughly 1,000,000,000 apart. However, in any given moment of time, the eye can only sense a contrast ratio of ...
Bleeding, hemorrhage, haemorrhage or blood loss is blood escaping from the circulatory system from damaged blood vessels. [1] Bleeding can occur internally , or externally either through a natural opening such as the mouth , nose , ear , urethra , vagina or anus , or through a puncture in the skin .
A 2020 article published in the Journal of Obesity and Metabolic Syndrome found that eating high-protein can safely help with weight loss while preserving lean mass (like muscle). Maintaining ...
Eye development is initiated by the master control gene PAX6, a homeobox gene with known homologues in humans (aniridia), mice (small eye), and Drosophila (eyeless). The PAX6 gene locus is a transcription factor for the various genes and growth factors involved in eye formation.
This is different from visual acuity, which refers to how clearly a person sees (for example "20/20 vision"). A person can have problems with visual perceptual processing even if they have 20/20 vision. The resulting perception is also known as vision, sight, or eyesight (adjectives visual, optical, and ocular, respectively).
While Muller glia division is responsible for the regeneration of the retina in all cases of retinal damage, the case of photoreceptor loss due to light damage is particularly well characterized. In response to photoreceptor ablation, Muller glia dedifferentiate and undergo a single asymmetric division to produce a neural progenitor cell and a ...