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Scotoma
Scotoma An absence of vision in part of the visual field. It is present in such conditions as glaucoma, or in more serious diseases within the brain. Often detected by a visual field test.
RELATED TERMS--------------------------------------
Vision
The sense of sight.
Glaucoma
A disease of the eye marked by increased pressure within the eyeball. If left untreated, glaucoma can damage the optic nerve and cause loss of vision
Brain
"That part of the central nervous system that is located within the cranium (skull). The brain functions as the primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called ""hemispheres."" "
SIMILAR TERMS--------------------------------------
Scotland County Memorial Hospital
The Scotland County Memorial Hospital is a hospital in Memphis, Missouri, United States.
Scotland Memorial Hospital
Scotland Memorial Hospital is a hospital in Laurinburg, North Carolina (USA).
Scotopic
Dim light conditions where only rods are functional.
Scott and White Memorial Hospital
Scott and White Memorial Hospital is a hospital in Temple, Texas (USA).
Scott Memorial Hospital
The Scott Memorial Hospital is a hospital in Scone, New South Wales, Australia.
Scottsdale doctors
All doctors near Scottsdale, the United States of America. Doctors who can assist a patient in Scottsdale.
Scottsdale Memorial Health System
Scottsdale Memorial Health System is a hospital in Scottsdale, Arizona (USA).
PREVIOUS AND NEXT TERMS--------------------------------------
Systemic lupus erythematosus
The commonest connective tissue disorder in which the commonest clinical features are dermatological (often with photosensitivity) and rheumatological.
Systemic sclerosis
A form of scleroderma.
Sulpiride
An antipsychotic drug.
Secobarbital
A hypnotic substance.
Sclera
The sclera is the white part of the eye. The clear cornea is the front extension of the sclera.
Scotoma
Snellen chart
The familiar eye chart with larger letters at the top and smaller ones at the bottom. It is used for measuring central vision.
Staphyloma
An abnormal bulging of the cornea or sclera. It is usually a congenital problem.
Stereopsis
Also known as depth perception. The separation between the eyes provides for slightly different views of an object by each eye. The brain for the purpose of telling the location of an object in 3D space uses this difference in views between the eyes or disparity.
Strabismus
Misaligned eyes. See exotropia, esotropia and hyperopia.
Stargardt’s disease
Also called Juvenile macular degeneration. Early in the course of the disease the retina may look normal to the eye doctor. Later in the disease process, there is a total loss of the RPE and photoreceptors in the macula. Disease progression is rapid leading to a central scotoma, reduced central vision leading to legal blindness and some loss of color vision by the age of 20 years. Patients sometime become photophobic. No treatment is available. Also see dominant progressive foveal dystrophy.
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