2024年6月20日 · Increased intracranial pressure (ICP) is a life-threatening condition that happens when there’s an imbalance between your brain tissue, cerebrospinal fluid and brain blood volume. It has several possible causes. Signs often include headache, vomiting and vision changes. The sooner you get treatment for ICP, the better.

2024年11月27日 · What is idiopathic intracranial hypertension? Idiopathic intracranial hypertension (IIH) happens when high pressure around the brain causes symptoms like vision changes and headaches. “Idiopathic” means the cause isn’t known, “intracranial” means in the skull, and “hypertension” means high pressure.

Many studies have demonstrated that intracranial pressure (ICP) has an important role in structural damage to the optic nerve. The gradient created at the lamina cribrosa (LC) level between ICP and IOP could be the major determinant …

2024年10月30日 · Idiopathic intracranial hypertension —or IIH, previously called "pseudotumor cerebri"—is when pressure inside your head rises, causing vision problems, headaches and other symptoms. This happens when fluid from the brain (called cerebrospinal fluid, or CSF) does not flow around the brain and spinal cord normally.

Detecting and monitoring elevated intracranial pressure (ICP) is crucial in managing various neurologic and neuro-ophthalmic conditions, where early detection is essential to prevent complications such as seizures and stroke.

2017年10月9日 · The most widely used and validated method of evaluating ICP elevation is measuring the optic nerve sheath diameter 3 mm behind the eye. This may be interpreted roughly as follows: <5 mm is normal; 5-6 mm is a grey zone >6 mm is abnormal, suggesting ICP elevation; This is a fast and easy examination which can yield useful information.

2009年9月27日 · Ocular signs developing as a result of increased intracranial pressure help the early diagnosis and prevention of severe and progressive pathological processes. Functional signs of the forming papillary oedema and central eye movement disorders may be predictors of increasing intracranial pressure.

2024年1月2日 · Idiopathic intracranial hypertension (IIH), also known as benign intracranial hypertension or pseudotumour cerebri, is defined as raised intracranial pressure in the absence of intracranial mass or hydrocephalus (an abnormal increase in CSF volume). This causes headaches and significant visual disturbances.

Eye tracking can be used as a non-invasive automatic method to quantify the physiological effects of elevated ICP. Kolecki et al. performed eye tracking in 23 patients with ICP levels ranging from –3 to 30 mmHg 55 times.

2019年11月27日 · Most evidence suggests ICP is lower in glaucoma than in control groups, and that the lamina cribrosa is thinner and more posteriorly displaced in glaucoma. Subjects who have had ICP reduced...