The organ of sight constituting a pair of globular organs made up of a three-layered roughly spherical structure specialized for receiving and responding to light.
Eyes
D005128
Eye Diseases
Diseases affecting the eye.
Eye Disorders,Eye Disease,Eye Disorder
D005129
Eye Foreign Bodies
Inanimate objects that become enclosed in the eye.
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014465
Ultrasonics
A subfield of acoustics dealing in the radio frequency range higher than acoustic SOUND waves (approximately above 20 kilohertz). Ultrasonic radiation is used therapeutically (DIATHERMY and ULTRASONIC THERAPY) to generate HEAT and to selectively destroy tissues. It is also used in diagnostics, for example, ULTRASONOGRAPHY; ECHOENCEPHALOGRAPHY; and ECHOCARDIOGRAPHY, to visually display echoes received from irradiated tissues.