Silicone material stitched to the outside of the eye indents (buckles) the sclera, causing a slight decrease in the circumference of the eye. In rare instances, these imaging methods can be used to help evaluate eye injuries or tumors. It can also identify certain tissue characteristics that can help in the diagnosis and treatment of eye tumors. This test uses high-frequency sound waves (ultrasonography) to help view the retina and other structures in the eye. The resulting images show retinal blood vessels and the deeper, harder-to-see blood vessels behind the retina in a tissue called the choroid. This test uses a dye that lights up when exposed to infrared light. This helps to exactly identify closed blood vessels, leaking blood vessels, new abnormal blood vessels and subtle changes in the back of the eye. This test uses a dye that causes blood vessels in the retina to stand out under a special light.

FAF highlights a retinal pigment (lipofuscin) that increases with retinal damage or dysfunction. FAF may be used to determine the advancement of retinal diseases, including macular degeneration. This test is an excellent technique for capturing precise images of the retina to diagnose epiretinal membranes, macular holes and macular swelling (edema), to monitor the extent of age-related wet macular degeneration, and to monitor responses to treatment. If you have macular degeneration, he or she might also ask you to use this test to self-monitor your condition at home. He or she will ask you if the lines of the grid seem faded, broken or distorted and will note where the distortion occurs on the grid to better understand the extent of retinal damage. Your doctor may use an Amsler grid to test the clarity of your central vision. The following tests may be done to determine the location and extent of the disease: The lesions consist of retinal degeneration leading to an atrophy of the tissues with lipid deposits in the internal retinal layers and they have the same complications and clinical protocols.To make a diagnosis, your ophthalmologist conducts a thorough eye exam and looks for abnormalities anywhere in the eye. Many authors consider it to be early stage of lattice degeneration. Snail-track retinal degeneration is a clinical variation of lattice degeneration, occurring mainly in young myopic eyes, characterized by long circumferential areas of retinal thinning with a glistening appearance. It occurs more commonly in but is not limited to myopic eyes. The vast majority of patients will have lesions that are completely stable or slowly progressive. The acute onset of floaters, flashes, peripheral field loss, or central vision loss may indicate the presence of a retinal tear or detachment. Patients with lattice degeneration are asymptomatic. Lesions may be isolated or multifocal, variable in dimension, and usually are oriented concentric or slightly oblique to the ora serrata, located within the equatorial region of the fundus, typically inferotemporal. However retinal detachment is a relatively rare complication of lattice degeneration. Retinal tears can occur with posterior vitreous separation pulling on the thinned retina, with an increased risk of retinal detachment. Condensed vitreous at the margins of the lattice lesions may appear as vitreous opacities and represent regions of increased vitreoretinal adhesion. It is bilateral in one third to one half of affected patients. Lattice degeneration is an atrophic disease of the peripheral retina characterized by oval or linear patches of retinal thinning.

Pigmented lattice degeneration