Uveitis is a relatively difficult disease in the entire ophthalmology discipline, and not all ophthalmologists have extensive experience in diagnosis and treatment. Even experienced ophthalmologists can make errors in the diagnosis and treatment of uveitis if they do not have evidence of laboratory testing. Every year when ophthalmology holds a national conference, uveitis is at the top of the list of reported cases of misdiagnosis and mistreatment of eye diseases. For example, tumor-induced pseudosyndrome, although it appears to be a manifestation of uveitis on ocular examination, is not actually an inflammatory disease and is caused by a malignant tumor, such as lymphoma. Such pseudosyndromes are difficult to make an accurate determination without the aid of laboratory testing. Therefore, even experienced ophthalmologists are still advised to try to get all kinds of test evidence to minimize the rate of misdiagnosis and misdiagnosis. What are the laboratory tests for intraocular fluid? Currently, laboratory tests for intraocular fluid are divided into two main categories. The first category is a variety of pathogenic tests to determine whether the uveitis is caused by a virus, bacteria or fungus. For example, tests for cytomegalovirus, EBV, varicella zoster virus; and gene chip technology, which can help the doctor quickly detect the cause of the disease within an hour. The second category is the testing of immune indicators, including cytokines, various inflammatory factors and neovascular growth factors. Do laboratory tests do anything other than identify the cause of the disease? The intraocular fluid inflammatory factor test can help the doctor determine the cause of uveitis and help him/her choose a more effective treatment. For example, to determine whether the neovascularization in the fundus is causing inflammation, and the degree of inflammation, to decide whether to use anti-new blood vessel drugs or anti-inflammatory drugs, or both. Uveitis is actually inflammation in the eye, and testing for inflammatory factors in the intraocular fluid allows for a more visual determination of the degree of activity of inflammation in the eye, as well as determining whether a certain treatment is effective and guiding further treatment. For example, a high test result for the inflammatory factor, interleukin 8, indicates active inflammation and a more severe condition; conversely, a less severe inflammation in the eye. After the doctor has treated cytomegalovirus retinitis with a particular drug for a period of time, if the examination reveals a gradual decrease in the level of the inflammatory factor, it means that this treatment is correct and should be adhered to; if the concentration of the inflammatory factor keeps rising, it means that the treatment is not the right way and should be corrected in time.