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| This glossary contains: 19186 medical terms |
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Snellen chart
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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.
RELATED TERMS--------------------------------------
Chart
Log of dental or medical records.
Central
In anatomy and medicine (as elsewhere), central is the opposite of "peripheral" which means away from the center.
Vision
The sense of sight.
SIMILAR TERMS--------------------------------------
PREVIOUS AND NEXT TERMS--------------------------------------
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
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.
Snellen chart
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.
Sex pheromones
Pheromones that elicit sexual attraction or mating behavior usually in members of the opposite sex in the same species.
RELATED TERMS--------------------------------------
Chart
Log of dental or medical records.
Central
In anatomy and medicine (as elsewhere), central is the opposite of "peripheral" which means away from the center.
Vision
The sense of sight.
SIMILAR TERMS--------------------------------------
PREVIOUS AND NEXT TERMS--------------------------------------
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
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.
Snellen chart
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.
Sex pheromones
Pheromones that elicit sexual attraction or mating behavior usually in members of the opposite sex in the same species.
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This dictionary contains 19186 terms.
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