The choroid, also known as the choroidea or choroid coat, is a part of the uvea, the vascular layer of the eye. It contains connective tissues, and lies between the retina and the sclera.

2024年11月5日 · Tucked away as the central/rear section of the middle layer of your eyeball’s outer wall, the choroid is one of the less visible eye structures. But while it may not be easy to see this structure, it’s essential to your sense of vision. Knowing how it works and what it needs can be important to helping maintain and protect your vision.

2023年10月30日 · It is a thin, pigmented vascular connective tissue layer of the eyeball that extends from the ora serrata to the optic nerve (CN II). It is located between the fibrous outer sclera and inner retina, extending from the optic nerve posteriorly.

Committed to improving the quality of life of all people with retinal disease. The choroid (pronounced “CORE-oyd”) is a spongy layer of blood vessels that lines the back wall of the eye between the retina and the sclera (or the white part of the eye). It plays an important role in delivering oxygen and nutrients to the outer half of the retina.

In short, the choroid is the life source that keeps the retina healthy and functioning. The choroid is part of the uvea, which also consists of the iris and the ciliary body. The iris and ciliary body are located in the front of the eye and work together to dilate and constrict the pupils.

2023年7月19日 · Chorioretinitis — a type of posterior uveitis — is inflammation of your retina and choroid. As your choroid supports your retina’s outer layers, inflammation can lead to complications that threaten your vision. Immediate treatment by a healthcare provider is critical. What is chorioretinitis?

2023年1月31日 · Sandwiched between your sclera and retina lies a multi-layered vascular tissue known as the choroid. This part of the eye is vital to retinal health by providing oxygen and nourishment and regulating temperature. Choroidal disorders, such as bleeding, detachment, or malignant growths, can pose serious risks to vision health.

Choroidal thinning involves thinning of Sattler’s layer and Haller’s layer rather than thinning of the choriocapillaris. CHOROIDAL THICKENING (PACHYCHOROID) A new spectrum of disorders involve focal or diffuse increase in the choroidal thickness.

2016年3月28日 · The part of your eye between the sclera and the retina. The choroid is part of the uvea, and it contains blood vessels and connective tissue. Read an overview of general eye …

2025年1月17日 · The choroid is a pigmented, vascular layer, which represents the posterior part of the vascular tunic of the eye called the uvea. The function of the choroid is to provide oxygen and nutrients to the outer layers of the retina 2. It is delineated from the anterior part of the uvea called the ciliary body at the ora serrata 1.