Biomaterial Database

[A preliminary ultrasound biomicroscopic study of anterior segment structures in normal human eyes]. 1997

W Yang, and L Liu, and X Li

Ophthalmology Department, Beijing Tong Ren Hospital.

OBJECTIVE We investigated anterior segment structures in normal human eyes by ultrasound biomicroscopy (UBM). METHODS UBM high frequency transducer (50-100mHz) was used to measure the anterior segment of normal human eyes. RESULTS Cornea, sclera, iris, lens, ciliary body, anterior chamber, posterior chamber and extraocular muscles can be visualized by UBM. CONCLUSIONS UBM is a new noninvasive method for imaging the anterior segment structures under living condition, and supplementary to the present existing imaging methods that have shortcomings in dynamic observation of the anterior ocular structures under such condition. As the frequency of the transducer is rather high, the imaging depth is limited to 4-5 mm, thus only the anterior ocular structures can be viewed.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008853	Microscopy	The use of instrumentation and techniques for visualizing material and details that cannot be seen by the unaided eye. It is usually done by enlarging images, transmitted by light or electron beams, with optical or magnetic lenses that magnify the entire image field. With scanning microscopy, images are generated by collecting output from the specimen in a point-by-point fashion, on a magnified scale, as it is scanned by a narrow beam of light or electrons, a laser, a conductive probe, or a topographical probe.	Compound Microscopy,Hand-Held Microscopy,Light Microscopy,Optical Microscopy,Simple Microscopy,Hand Held Microscopy,Microscopy, Compound,Microscopy, Hand-Held,Microscopy, Light,Microscopy, Optical,Microscopy, Simple
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000869	Anterior Eye Segment	The front third of the eyeball that includes the structures between the front surface of the cornea and the front of the VITREOUS BODY.	Anterior Eye Segments,Eye Segment, Anterior,Eye Segments, Anterior,Segment, Anterior Eye,Segments, Anterior Eye
D000886	Anthropometry	The technique that deals with the measurement of the size, weight, and proportions of the human or other primate body.
D014463	Ultrasonography	The visualization of deep structures of the body by recording the reflections or echoes of ultrasonic pulses directed into the tissues. Use of ultrasound for imaging or diagnostic purposes employs frequencies ranging from 1.6 to 10 megahertz.	Echography,Echotomography,Echotomography, Computer,Sonography, Medical,Tomography, Ultrasonic,Ultrasonic Diagnosis,Ultrasonic Imaging,Ultrasonographic Imaging,Computer Echotomography,Diagnosis, Ultrasonic,Diagnostic Ultrasound,Ultrasonic Tomography,Ultrasound Imaging,Diagnoses, Ultrasonic,Diagnostic Ultrasounds,Imaging, Ultrasonic,Imaging, Ultrasonographic,Imaging, Ultrasound,Imagings, Ultrasonographic,Imagings, Ultrasound,Medical Sonography,Ultrasonic Diagnoses,Ultrasonographic Imagings,Ultrasound, Diagnostic,Ultrasounds, Diagnostic