What are the tests for black shadow in front of one eye?

Patients with punctate inner chorioretinopathy mainly complain of dark shadows, flashing sensations, dark spots, blurred vision and decreased vision in front of one eye. It can also be seen as a result of lens and vitreous diseases. Punctate inner choroidopathy is a rare multifocal inflammatory disease of the choroidal retina that typically occurs in young women with myopia and presents as scattered yellowish-white lesions in the posterior pole at the level of the retinal pigment epithelium and inner choroid, with a self-limiting process that is usually not associated with inflammation of the anterior segment and vitreous. What are the tests for punctate inner chorioretinopathy? Fluorescein fundus angiography shows strong fluorescence in the early stages of active lesions, fluorescein leakage in the late stages, dye leakage into the subretina in cases of placoid retinal detachment, and fluorescence defects in the presence of chorioretinal atrophy; it also shows choroidal neovascular membrane. Indocyanine green angiography can reveal multiple weakly fluorescent spots in the posterior pole. Typical changes are multiple scattered yellowish-white circular lesions, 50-300 μm in size, in the bilateral fundus, located at the level of the retinal pigment epithelium and inner choroid, mainly in the posterior pole, and some lesions may be associated with placental retinal detachment. These lesions usually resolve after several months, leaving behind either retinal pigment epithelial disorder or an atrophic choroidal retinal scar, which later becomes a scar with chiseled edges. In the vast majority of cases, vitreous opacities do not cause vision loss and do not even require treatment. These conditions include physiologic aphakia, mild age-related degeneration, and myopic changes. In a few cases, however, the presence of vitreous opacities is a very important warning sign of some blinding diseases. If treated promptly, the disease can be prevented from progressing and vision can be saved. Retinal detachment, for example, usually requires surgery, but if a careful examination is performed when the vitreous clouding first appears, sometimes a dry hole can be found and, with laser treatment, the formation of retinal detachment can be avoided, thus saving the pain of surgery. If there is a history of significant trauma prior to the appearance of vitreous opacities, more floating black shadows in front of the eyes, which arise more quickly and suddenly, along with a sense of flashing light and loss of vision, this is often a manifestation of such disease and requires prompt medical attention.