Pinguecula vs. Pterygium
Background: Both a pinguecula and a pterygium are forms of conjunctival elastic degenerations of the stroma that are caused by chronic exposure to sunlight, wind, and dry eye conditions. They are seen in individuals who do regular work...
Vitreous Hemorrhage
Background: A vitreous hemorrhage is a common conditions with a variety of causes. It occurs when a bleed happens within the vitreous, anterior to the posterior vitreous face. Symptoms tend to vary according to severity of the bleed. A...
Asteroid Hyalosis or Space Galaxy?
Background: Asteroid hyalosis is a common degenerative process that occurs when calcium pyrophosphate particles, or calcium phosphate soaps, collect within the gel portion of the vitreous. These particles attach to collagen fibrils...
Choroidal Melanoma: The Most Common Primary Intraocular Malignancy in Adults
Background: A choroidal melanoma is a malignant tumor of choroidal melanocytes. The melanin-containing cells in the choroid become malignant and grow underneath the RPE. This type of tumor is the most common primary intraocular...
The Anatomy of The Cover Test
Background A Cover Test is one of the skills learned during the first year of optometric education, and it is an important part of a comprehensive eye examination. This test is used to evaluate and quantify ocular deviations that may be...