What causes anterior staphyloma?
Anterior staphyloma or staphyloma in the front of the eye that involves the cornea and sclera. It occurs due to disturbed scleral architecture and stretching of eye leading to raised internal pressure from a weak point and eventually causing the protrusion and typical appearance of staphyloma.
What causes posterior staphyloma?
Posterior staphyloma is a condition that can be present in highly myopic individuals with long axial lengths. It is caused by elongation of the globe due to thinning and bulging of the sclera and results in an irregular configuration of the retina at the posterior pole.
Is staphyloma curable?
There is currently no known medical treatment for staphylomas.
Does staphyloma cause blindness?
Macular degeneration can result in legal blindness among those with progressive myopia and posterior staphyloma.
What is anterior staphyloma?
Definition. A localized defect in the anterior eye wall with protrusion of uveal tissue due to alterations in scleral thickness and structure. [ from HPO]
What is Equatorial staphyloma?
n. A staphyloma occurring in the area of exit of the vortex veins of the eyeball.
How is posterior staphyloma treated?
While there is no standard treatment for posterior staphyloma, some of the associated visually threatening complications, such as macular hole or choroidal neovascularization, respectively, can be treated with pars plana vitrectomy or intravitreal anti–vascular endothelial growth factor injection.
What is retina and uvea?
It has three parts: (1) the iris, which is the colored part of the eye;(2) the ciliary body, which is the structure in the eye that secretes the transparent liquid within the eye; and (3) the choroid, which is the layer of blood vessels and connective tissue between the sclera and the retina.
Posterior staphyloma. Posterior staphyloma is a condition that can be present in highly myopic individuals with long axial lengths. It is caused by elongation of the globe due to thinning and bulging of the sclera and results in an irregular configuration of the retina at the posterior pole.
What is staphyloma?
Disease Entity 1 Introduction. A staphyloma is a circumscribed outpouching of the wall of the globe. 2 Types of staphyloma according to location. In staphyloma the wall of the globe (cornea or sclera) are ectatic/thin and bulging with uveal tissue in it giving it a pigmented color. 3 Epidemiology. 4 Pathophysiology.
What causes staphylomas on the eye?
Rarely staphylomas can be caused by surgical weakening of the sclera at some point. Posterior staphylomas are more commonly congenital (at birth) or as a manifestation of more extreme myopia (nearsightedness).
What are the possible complications of staphylomas?
Staphylomas are associated with other macular complications related to myopia, such as choroidal neovascularization, retinoschisis, and glaucomatous optic neuropathy. In the non-myopic eye, staphylomas can be seen as a response to trauma or infection, and rarely, surgery.