Helpful tips

What is episcleral venous pressure?

What is episcleral venous pressure?

Episcleral venous pressure (EVP) is an important determinant of intraocular pressure (IOP) and can be measured by using various techniques. It has been measured non-invasively by estimating the pressure required to compress an episcleral vein to a predetermined endpoint.

What causes episcleral venous pressure?

Elevated episcleral venous pressure (EVP) is a clinical finding which may be associated with elevated intraocular pressure (IOP) and glaucoma if left chronically untreated. In many cases the diagnosis is secondary to an underlying etiology, however it can also be idiopathic if all other causes are excluded.

Where do episcleral veins drain?

The episcleral veins are thin vein in the sclera. They drain into the superior ophtalmic vein.

What is intraocular pressure?

Intraocular pressure (IOP) is the fluid pressure of the eye. As pressure is a measure of force per area, IOP is a measurement involving the magnitude of the force exerted by the aqueous humor on the internal surface area of the anterior eye.

Whats causes glaucoma?

Open-angle glaucoma Glaucoma is a group of eye conditions that damage the optic nerve, the health of which is vital for good vision. This damage is often caused by an abnormally high pressure in your eye. Glaucoma is one of the leading causes of blindness for people over the age of 60.

What are vortex veins?

Vortex veins are comprised of four to five large venous vessels located in loose connective tissue in the external vessel layer of the sclera. The vortex veins pierce the sclera to join the superior and inferior ophthalmic veins, which assist in carrying blood from the eye to the cavernous sinus.

Is Episcleritis painful?

Episcleritis doesn’t normally hurt much, but may feel irritated. So if your eye is sore or painful, you may have something else. It doesn’t usually affect your vision or cause permanent damage to your eyes.

What are conjunctival vessels?

The conjunctiva has many small blood vessels that provide nutrients to the eye and lids. It also contains special cells that secrete a component of the tear film to help prevent dry eye syndrome.

What drains into the vortex veins?

Some vortex veins drain into the inferior ophthalmic vein which drains into the pterygoid plexus and cavernous sinus….

Vorticose veins
Drains to inferior ophthalmic vein, superior ophthalmic vein
Artery short posterior ciliary arteries
Latin venae vorticosae

Where do ophthalmic veins drain?

The superior and inferior ophthalmic veins drain into the pterygoid venous plexus and cavernous sinus. The cavernous sinus drains posteriorly into the petrosal sinuses (superior and inferior). The superior petrosal sinus connects to the transverse and sigmoid sinus.

How can I lower my eye pressure fast?

These tips may help you control high eye pressure or promote eye health.

  1. Eat a healthy diet. Eating a healthy diet can help you maintain your health, but it won’t prevent glaucoma from worsening.
  2. Exercise safely.
  3. Limit your caffeine.
  4. Sip fluids frequently.
  5. Sleep with your head elevated.
  6. Take prescribed medicine.