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Retinal migraine is a retinal disease often accompanied by migraine headache and typically affects only one eye. It is caused by ischaemia or vascular spasm in or behind the affected eye. The terms "retinal migraine" and "ocular migraine" are often confused with " visual migraine ", which is a far-more-common symptom of vision loss, resulting ...
Therefore, creatinine concentrations in blood and urine may be used to calculate the creatinine clearance (CrCl), which correlates approximately with the glomerular filtration rate (GFR). Blood creatinine concentrations may also be used alone to calculate the estimated GFR (eGFR). The GFR is clinically important as a measurement of kidney function.
The most common symptom of a spinal CSF leak is a fast-onset, extremely painful orthostatic headache. [23] [25] This headache is usually made worse by standing and typically becomes prominent throughout the day, with the pain becoming less severe when lying down. [26] Orthostatic headaches can become chronic and disabling to the point of ...
"As a neurologist, I am always worried headaches behind my patient's eye could be cluster headaches, which may involve tearing of the eyes and a droopy eyelid," Dr. Segil says. Related: Easy ...
Migraine (UK: / ˈ m iː ɡ r eɪ n /, US: / ˈ m aɪ-/) [1] [2] is a genetically-influenced complex neurological disorder characterized by episodes of moderate-to-severe headache, most often unilateral and generally associated with nausea and light and sound sensitivity.
The aura of migraine is visual in the vast majority of cases, because dysfunction starts from the visual cortex. The aura is usually followed, after a time varying from minutes to an hour, by the migraine headache. However, the migraine aura can manifest itself in isolation, that is, without being followed by headache.
Visine (/ ˌ v aɪ ˈ z iː n /), also known as Vispring, is a brand of eye drops produced by Kenvue. [1] Visine was first introduced in 1958 and was acquired by Pfizer in 1999. [2] [3] In 2006, Johnson & Johnson acquired Visine, along with Pfizer's entire consumer healthcare portfolio. [4]
The glomerular filtration rate is the flow rate of filtered fluid through the kidney. The creatinine clearance rate (C Cr or CrCl) is the volume of blood plasma that is cleared of creatinine per unit time and is a useful measure for approximating the GFR. Creatinine clearance exceeds GFR due to creatinine secretion, [1] which can be blocked by ...