I. Overview Uveitis used to refer to inflammation of the uvea itself, but now internationally, inflammation that occurs in the uvea, retina, retinal blood vessels, and vitreous body is usually referred to as uveitis. Uveitis mostly occurs in young adults and is easy to merge into the whole body. Sexual autoimmune diseases often recur, are difficult to treat, and can cause some serious complications. They are a common and important blinding eye disease.

2. Anterior uveitis

3. Intermediate uveitis

4. Posterior uveitis

1. Vogt-Koyanagi Harada disease

2. Behcet’s disease

3. Sympathetic ophthalmia

4. Fuchs syndrome

5. Acute retinal necrosis syndrome (ARN): The exact cause is not completely clear, but it may be caused by herpes virus infection. It manifests as retinal necrosis, vasculitis mainly retinal arteritis, and glass vasculitis. Vitreous opacification and later retinal detachment.

1. Iris cyst There are many causes of iris cysts, including congenital, traumatic implantation, inflammation, exudation, and parasitic origin. Among them, traumatic implantation is the most common.

2. Choroidal malignant melanoma Choroidal malignant melanoma is the most common intraocular malignant tumor in adults. It is more common in adults aged 50 to 60 years and is often unilateral.

3. Choroidal metastasis cancer Choroidal metastasis cancer is more common in people aged 40 to 70 years old, more common in women, and can be in one or both eyes, with the left eye being more common than the right eye. Metastasis of breast cancer is the most common, followed by lung cancer, and others include metastasis of kidney cancer, digestive tract cancer, thyroid cancer or liver cancer. Because metastatic cancer grows quickly, it can compress the ciliary nerve, causing severe eye pain and headache in the early stages. The fundus appears as grayish-yellow or yellowish-white, nodular flat bulges under the retina at the posterior pole, and extensive retinal detachment may occur in the late stages. During diagnosis, a detailed history of the tumor should be asked to search for the primary lesion. CT, MRI, ultrasound and FFA examinations are helpful in diagnosis.

4. Choroidal osteoma The cause of choroidal osteoma is still unclear, but it is mostly thought to be a bony blurred tumor. It is more common in young women.

1. No iris Almost always both eyes are affected. It is often accompanied by abnormalities of the cornea, anterior chamber, lens, retina and optic nerve, and is an autosomal dominant inheritance. The iris is completely missing, and the equatorial edge of the lens, suspensory ligament, and ciliary process can be directly seen. There may be photophobia and low vision caused by various eye abnormalities.

2. Iris defect Typical iris coloboma is a complete iris defect located below, forming a pear-shaped pupil with the tip pointing downward. The difference from surgical resection is that the edge of the defect is covered by pigment epithelium. It is often accompanied by other congenital malformations of the eye, most of which are not Affect vision.